One reason why the water lily (Nymphaea spp.) lacks a waxy cuticle is because it is adapted to living in an aquatic environment. A waxy cuticle is a layer of cutin, a waterproof, protective coating found on the surface of plant leaves and stems. It helps to prevent water loss through evaporation and protect the plant from dehydration.
However, water lilies are adapted to living in an aquatic environment, where they are constantly surrounded by water. As a result, they do not need to worry about water loss through evaporation and do not have a waxy cuticle to prevent it. Instead, water lilies have evolved other mechanisms, such as thick, succulent leaves and stems, to help them absorb and store water.
Hope This Helps You!
The water lily lacks a waxy cuticle because it is generally present in the water, so it does not have the adaptation to save water, so it does not have the waxy cuticle, while these are the adaptations of the desert plants.
What is the significance of the water lily?The water lily is significant as it has an important role in aquatic ecosystems because it provides food for a wide variety of aquatic animals, such as insects and fish, while its roots can help stabilize shorelines, prevent erosion, and purify water by removing excess nutrients. Its seeds are of great interest to humans due to their high demands.
Hence, the water lily lacks a waxy cuticle because it is generally present in the water, so it does not have the adaptation to save water, so it does not have the waxy cuticle, while these are the adaptations of the desert plants.
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How do organs work together in the nervous system to allow a fish to react to stimuli in its environment?
A. External stimuli trigger signals that move through the gills to the gill filaments, which send signals to the brain.
B. The brain sends signals through the lymph nodes to the skin, where the muscles decide how to react.
C. The brain sends signals through the spinal cord, which sends signals to nerves in the central nervous system.
D. External stimuli trigger signals that move through the nerves to the brain, which processes the information.
Answer:
D. External stimuli trigger signals that move through the nerves to the brain, which processes the information.
Explanation:
The brain then sends signals through the spinal cord, which sends signals to nerves in the central nervous system. The muscles then decide how to react based on the signals from the central nervous system.
Explanation:
How do organs work together in the nervous system to allow a fish to react to stimuli in its environment?
A. External stimuli trigger signals that move through the gills to the gill filaments, which send signals to the brain.
B. The brain sends signals through the lymph nodes to the skin, where the muscles decide how to react.
C. The brain sends signals through the spinal cord, which sends signals to nerves in the central nervous system.
D. External stimuli trigger signals that move through the nerves to the brain, which processes the information.
What should be done first in neonatal resuscitation?
In neonatal resuscitation firstly the newborn should be placed under a radiant heat source to offer warmth.
The baby should then be dried off, their airway should be cleared with a bulb syringe or suction catheter if necessary, and their breathing should be stimulated.
Clear the airway by suctioning the mouth first, followed by the nose, with a bulb syringe or suction catheter if the baby is energetic at birth (strong respiratory effort, such as crying, good muscular tone, heart rate > 100 bpm). If bradycardia develops when sucking, cease sucking and reassess the heart rate. Suctioning for intubation is not necessary.
The newborn needs tracheal suctioning if they are not active (decreased breathing, depressed muscle tone, and heart rate 100 bpm). Using a laryngoscope and a suction catheter under direct eyesight, first clean the mouth and posterior pharynx before inserting the endotracheal tube into the trachea. Connect an apparatus for suction to the endotracheal tube. As the tube is gently withdrawn, use suction. Repeat as necessary until the meconium is recovered or the heart rate drops down below 60 beats per minute, at which point immediate resuscitation is required. Give a soft yet forceful stimulation; touch the back and softly flick the soles.
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The geyser basin hot springs at Yellowstone National Park is a great place to observe the growth of thermophiles, microbes that can live in extremely hot waters. True False
The hot springs of Geyser Basin in Yellowstone National Park are a great place to observe the growth of thermophiles. Thermophilic microorganisms can live in very hot water. This statement is true.
The term "thermophile" refers to bacteria that can grow at temperatures up to 55°C (minimum 45°C, optimum temperature range 55-65°C, maximum 80°C). Hyperthermophiles (extreme thermophiles) are microorganisms that can grow at temperatures as high as 113°C, ideally 80°C. Examples include Bacillus stearothermophilus, Thermoplasma acidophilus, and Thermus aquaticus.
Hot springs are often home to microbial communities adapted to life in hot, mineral-rich waters. Oxygen and light levels are lower in hot springs. Almost all hot springs and geysers are home to thermophilic bacteria.
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At what heart rate should you start compressions on a newborn?
The current neonatal resuscitation guidelines recommend to start chest compression in a newborn infant if the heart rate remains <60 beats per minute despite adequate ventilation for 60 s .
A small percentage (less than 10%) of newborn babies need active resuscitative measures in order to establish a loud cry or consistent breathing, keep their heart rates over 100 beats per minute (bpm), and acquire acceptable color and tone.
The establishment of proper ventilation has to be your top priority. If stimulation does not result in the prompt commencement of spontaneous respirations or the heart rate is below 100 bpm, give assisted ventilation while paying close attention to oxygen delivery, inspiratory time, and effectiveness as determined by chest rise.
To obtain roughly 90 compressions and 30 breaths per minute, time chest compressions with ventilations at a 3:1 ratio at a rate of 120 events per minute. If the heart rate is below 60 beats per minute after 30 seconds of efficient aided breathing and circulation, provide epinephrine (chest compressions).
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Four of the following are major human activities that disrupt and degrade freshwater systems; one is not. Choose the one that is not.
Thickness of the ozone layer id not the one that disrupt and degrade freshwater systems.
The stratosphere, 15–40 km above the earth's surface, may include the ozone layer. Under typical pressure and temperature circumstances, the ozone layer in the stratosphere is between 2 and 5 mm thick, and the amount of ozone present varies by season, hour of the day, and location. Ozone builds up in the polar area due to poor photochemical depletion and ozone transfer from the equator. In the absence of other ozone-disturbing components, the highest ozone values are therefore observed over the Polar regions in winter. Wetlands are often referred to be areas of land that are either permanently saturated with moisture or immersed in shallow water.
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How long can killer whales go without air?
Killer whales can't even come close to holding their breath for as long. Their maximum duration is approximately 15 minutes, but we typically observe them surfacing for air every 3-5 minutes when traveling or every minute when moving quickly.
The largest member of the Dolphin family, the orca, also known as the "killer whale," is a whale with teeth. The black-and-white coloration, large dorsal fin, and streamlined body of these large marine mammals make them easy to spot. Bright white dominates on the fluke undersides, ventral surface, and lower jaw. When they are looking for food, the distinctive patterns serve as a form of camouflage to conceal their presence.
Like humans, whales use their lungs to get the oxygen they need from air. However, instead of breathing through their mouths, they breathe through the blowholes on top of their heads, which are their nostrils. Without having to lift their entire head out of the water, they can easily breathe through the blowhole.
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What are the 3 light reactions in plants?
fame money and girls
What happens if a cell gets too large for the amount of DNA it has?
The cell is the fundamental unit of life and its structure is highly dependent on the amount of DNA it contains. As such, if a cell gets too large for the amount of DNA it has, it can lead to a range of problems for the cell. This is because the amount of DNA a cell contains determines its size, shape, and the number of processes it can carry out.
One consequence of having too little DNA for a large cell is that it will not be able to divide properly during cellular reproduction. This is because the DNA is responsible for providing instructions to the cell about how to divide and replicate itself, and if there is not enough DNA present, the cell will not be able to divide correctly. As a result, the cell may become deformed or contain abnormal structures or functions.
In addition, when the cell is too large for the amount of DNA it has, it often results in a decrease in the amount of proteins it produces. This is because the DNA is responsible for providing instructions to the cell on how to produce proteins, which are essential for cell growth and development. Without enough DNA to provide these instructions, the cell cannot produce the necessary proteins and is not able to function properly.
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With industrialized food production, for every one unit of energy put on the table in the United States, how many units of nonrenewable fossil fuel energy are required to produce it
In the United States, industrialized food production requires approximately 10 units of nonrenewable fossil fuel energy to produce 1 unit of energy put on the table.
This is because industrialized food production involves the use of heavy machinery, transportation of food from the farm to the distribution center, and the use of fertilizers, pesticides, and other chemicals to produce crops. All of these activities require energy which is typically sourced from nonrenewable fossil fuel sources.
Additionally, food production also requires energy for processing and packaging, which further increases the amount of energy required to produce 1 unit of energy put on the table. In conclusion, industrialized food production requires approximately 10 units of nonrenewable fossil fuel energy for every 1 unit of energy put on the table in the United States.
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The Lygaeus mode of sex determination is the ________. A. XY/XX scheme B. hermaphroditic scheme C. XX/XO scheme D. scheme based on single translocations in the X chromosome E. XO/YY scheme
The Lygaeus mode of sex determination is the A. XY/XX scheme that is determined by the scheme.
The common mode of sex determination: XX/XY. Although the X chromosome is bigger than the Y chromosome and incorporates over 1300 genes, there have to be the presence of a Y chromosome so as for the male phenotype to be expressed. X chromatin in its inactivated shape is gift as a mass towards the nuclear membrane in girls is referred to as Barr frame because it became first named via way of means of Barr and Bertem (1949). These Barr our bodies are found in 40% of girls who're taken into consideration as chromatin wonderful and absent in men who're taken into consideration as chromatin negative.
Thus, the correct option is A.
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Create offspring with a few different levels of Food supply. How does food supply affect the body type of offspring?
Food supply affects body type of offspring by providing resources for growth, lack of it can cause malnourishment and smaller size.
Food supply can have a significant impact on the body type of offspring. When food is abundant, offspring may have the resources to grow larger and develop more muscle mass. Conversely, when food is scarce, offspring may be smaller and have less muscle mass as they do not have access to as many resources for growth. Additionally, if the food supply is inadequate, the offspring may be malnourished and have health problems. It is also worth noting that genetic factors also play a role in determining body type, so food supply may not be the only factor influencing the body type of offspring.
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Which of the following is an important step in the preparation of a proper bacterial smear?
a. Allow the loop to cool after it has been flamed.
b. Label the underside of the slide (the downward-facing side of the slide) with the type of microbe you will be transferring.
c. Repeat inoculations such that the smear is as thick and undiluted as possible.
d. Apply methane to clean the slide prior to smearing inoculum.
Allow the loop to cool after it has been flamed is an important step in the preparation of a proper bacterial smear
A bacterial smear is a small layer of bacteria that is deposited on a slide or a tray for staining. The bacteria are fixed on the slide, and this stops the bacterial sample from being washed away during staining. A crucial step in creating a healthy bacterial smear is allowing the loop to cool after burning.
This is due to the fact that blazing the loop sterilises it by eliminating any bacteria that may be present on the loop, but if the loop is still hot when a sample is taken, the bacteria may be "fried" rather than collected. For effective identification and analysis, it is crucial that the bacteria are gathered in their natural state, which is ensured by allowing the loop to cool.
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A high concentration of bicoid protein at the opposite ends of a developing Drosophila embryo would result in the development of a _____. two-headed fly fly with a head growing out of its abdomen fly with two abdomens hermaphrodite fly with legs growing out of its head
A high concentration of bicoid protein at the opposite ends of a developing Drosophila embryo would result in the development of a Two headed fly.
In Drosophila, anterior development is entirely dependent on bicoids (Bcd). Consequently, in the absence of maternally deposited BCD, the head and thoracic regions are replaced by posterior structures. The bcd is located at the front of the egg by the 3'UTR. If her Bicoid protein is expressed in
Drosophila, the embryo is still in a syncytial state (intercellular division is not fully developed). Embryos lacking maternally expressed bicoids do not develop the anterior region, including the head and thorax.
Bicoid mRNA is actively localized along microtubules to the front of the Drosophila egg by the motor protein dynein during oogenesis, where it is anchored by association with cortical actin.
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What are the 5 main food groups and their function?
Five main food groups are Carbohydrates ,Protein, Dairy products, Fruit and vegetables and Fats and sugars.
These five food groups are responsible for providing wide array of vitamins and minerals that our body needs for proper and efficient functioning .
Carbohydrates are body's primary source of energy or preferred energy source. Carbs are generally broken down by the body into glucose which is also a type of sugar. Protein are responsible to work with cells for maintaining proper structure, function, and regulation of the body's tissues and organs. vegetables and fruits helps lower blood pressure, reduce the risk of heart disease and stroke, prevent cancers. Fats store energy and protect vital organs .
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What is the difference between cellular respiration and getting energy from a log by burning it?
The stored chemical energy is eventually released during cellular respiration through a sequence of enzyme-aided processes. When a log burns, chemical energy that has been stored is swiftly released as heat and light.
Living cells need respiration, a biological process, to release energy. A chemical reaction called combustion takes place outside of living organisms or cells. A controlled biological process, respiration. It is impossible to control combustion. When there is oxygen present, substances undergo a chemical reaction known as burning, which produces significant amounts of heat and light. Similarities between burning and respiration For the creation of energy, both processes need oxygen. As a byproduct, they emit carbon dioxide. The metabolic process known as respiration is when an organism obtains energy from the breakdown of glucose molecules in the form of ATP molecules.
When compounds are exposed to oxygen, a chemical reaction known as burning takes place.
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What would happen if a mistake were not caught by the proofreading mechanism and became permanent in the DNA
If a mistake were not caught by the proofreading mechanism and became permanently incorporated into the DNA, the consequences could be catastrophic.
The DNA is the blueprint for all life, and any mutation or alteration can cause a range of problems, from minor to severe. If the mistake were to alter a gene that is important for cell survival, it could lead to a range of health problems, from mild to life-threatening.
For example, if a gene that is responsible for the production of a certain enzyme is altered, it can cause a metabolic disorder, leading to physical and mental disabilities. If the mistake were to alter a gene that is responsible for the functioning of a specific organ, such as the heart or brain, it could lead to serious health problems, such as heart defects or neurological disorders.
If the mistake were to alter a gene responsible for the development of an organism, it could lead to serious developmental defects or even death. For example, if a gene that provides instructions for the development of the body's organs is altered, it could lead to serious malformations or even death.
In addition to the health risks, a mistake in the DNA could also lead to changes in the species. For example, if a mutation alters a gene that is important for the survival of a species, it could lead to the extinction of the species. This could be due to a decrease in fertility, a decrease in the population size, or an inability to adapt to a changing environment.
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Best Question/Problem for Hot and cold compress
helpp mee plsss Thank youu
Im guessing any is fine, as long as its acceptable.
"What are the benefits and potential risks of using hot and cold compresses, and when is it appropriate to use each type?"
Calculate the discharge of a stream that has a velocity of 300 m/s and is 25 m wide and 3 m deep.
Answer:
Discharge (Q) = Velocity (V) x Area (A)
Q = V x A
Q = 300 m/s x (25 m x 3 m)
Q = 22,500 m³/s
The pancreatic fluid accumulates in sac like pouches called pancreatic acini and eventually flow out the ___________________ duct which carries these secretions to the ___________________
The pancreatic fluid is stored in small, sac-like structures known as pancreatic acini. These secretions then travel along the duodenum duct to the pancreatic duct, where they are released.
The pancreatic duct and duodenum are two essential components of the digestive system. The pancreatic duct carries secretions from the pancreas to the duodenum, which is the first part of the small intestine. The secretions of the pancreas, including digestive enzymes and bicarbonate, are produced in the pancreatic acini and then travel through the ducts to the duodenum.
The duodenum acts as a buffer, allowing the secretions to mix and interact with the other digestive enzymes and bile from the liver, before entering the small intestine. The pancreatic duct and duodenum work together to ensure that the body can properly process and absorb nutrients from the foods we consume.
The pancreatic fluid is essential for proper digestion and absorption of nutrients, as it helps to break down complex molecules in the food we eat. Without the pancreatic duct and duodenum, the body would not be able to process and absorb the necessary nutrients.
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If air and cloud were good conductor of electricity, do you think lightning could occur? Explain
Yes, lightning could still occur even if air and clouds were good conductors of electricity.
Lightning is caused by an imbalance of electric charges within clouds, or between the clouds and the ground. When this occurs, the electric bills will seek to equalize by transferring the excess charge to the opposite charge. The air and clouds are the media through which this charge is transferred, but the movement of the charge itself is what causes the lightning.
Therefore, even if air and clouds were better conductors of electricity, the imbalance of electric bills would still cause lightning. In addition, lightning is not just caused by the movement of electric charges through the air and clouds, but also by the build-up of static electricity. This static electricity is generated by the friction between air particles, or between the air and the clouds, and the resulting electric fields can cause lightning.
Therefore, even if air and clouds were good conductors of electricity, static electricity could still build up and result in lightning.
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Please Help Me Out❗️❗️
Answer:
B
Explanation:
Enzymes work to speed up chemical reactions by changing what goes into the reactions into different molecules. To do so, these enzymes bind with the substrates, making the physical form very important. The lock and key method explains that enzymes and their corresponding substrates are shaped very specifically to be able to fit into one another to undergo this change. Hope this helps
. An organism that has two different alleles of a given gene has a(n) _____ genotype. aneuploid dizygous heteromorphic heterozygous homozygous
An organism that has two different alleles of a given gene has a(n) heterozygous genotype. aneuploid dizygous heteromorphic heterozygous homozygous
Heterozygous genotypes are characterized by two different alleles of a particular gene. These alleles can be inherited from different parents or from the same parent, and this type of genotype is also known as a dizygous genotype.
An example of this is eye color; if an individual has one allele for blue eyes and one allele for brown eyes, they would have a heterozygous genotype. This type of genotype is important for producing genetic diversity, allowing for adaptations that can be beneficial to a species. It is also important to note that having a heterozygous genotype does not guarantee that the individual will express the traits of both alleles; rather, the individual will usually express the trait of the dominant allele.
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What are the main features of bacteria?
Some of the main features of bacteria are that they unicellular, prokaryotic, they lack membrane bound organelles, are microscopic in size and lack a nucleus.
Bacteria are single-celled or unicellular organisms which have the ability to thrive in a wide range of conditions and are found almost everywhere in the environment. These organisms are microscopic and hence they cannot be seen with bare eyes without a microscopic.
They have a cell wall which is protective in function but do not contain a nucleus and also lack membrane bound cell organelles and hence are prokaryotic organisms. Their mode of nutrition can be either heterotrophic or autotrophic. They are found in different shapes like spherical, rod-shaped etc.
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What are some of the selection criteria used by agriculturalists for selecting plants and livestock
The selection of plants and livestock by agriculturalists is a critical component of successful farming.
It is important to choose the right plants and animals in order to maximize yields, reduce risk, and ensure sustainability. There are several criteria that agriculturalists use to make their selections.
The first selection criteria is climatic adaptability. This means ensuring that the plants and animals being chosen are suitable for the climate, soil, and other environmental conditions of the farm. It is important to choose varieties that are disease resistant, drought tolerant, and adapted to local conditions. Additionally, plants should be chosen based on their yield potential, harvest season, and marketability.
The second selection criteria is genetic variability. This means selecting plants and animals with a wide range of genetic diversity. This diversity is important for ensuring that the crops and livestock are able to adapt to changing environmental conditions. Additionally, genetic diversity helps to reduce the risk of disease and pest outbreaks.
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54. Using mechanical friction when prepping will not aid in: a. Removal of resident bacteria b. Removal of dirt and oil c. The effectiveness of antimicrobials d. Removal of transient bacteria
Using mechanical friction when prepping will not aid in: a. Removal of resident bacteria.
Friction is described because the resistance to movement because of sliding, and all equipment devour frictional strength due to the fact their components slide in opposition to one another. Lubrication can manipulate friction in a number of those times however very often, including in engines, maximum mechanical strength is misplaced through shearing liquid lubricant films. In mechanical structures including inner combustion engines, the time period refers back to the electricity misplaced in overcoming the friction among transferring surfaces. Frictional forces, such as the traction needed to walk without slipping, may be beneficial, but they also present a great measure of opposition to motion.
Thus, option a is the correct choice.
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Humans rely on sensory receptors to interpret messages about their surroundings. Sensory receptors respond to mechanical, physical, or chemical stimuli. There are different kinds of sensory receptors for detecting different kinds of stimuli. Chemoreceptors are specialized nerve cells that pick up chemical stimuli, such as smells or the pH level of foods. Such stimuli tell the brain and body to react a certain way to protect the body. If a person in a controlled test is introduced to a safe chemical stimulus, what is the most logical prediction you could make?
A. The person will bat the eyelids to push the chemicals away with the eyelashes.
B. The person will plug the nose to shield the body from offensive chemical smells.
C. The person will cover the ears to protect the ears from chemicals in loud noises.
D. The person will bite the nails to keep the chemical from seeping into the fingers
The most logical prediction you could make is the person will bat the eyelids to push the chemicals away with the eyelashes.
Internal organs as well as specialized organs like the eyes, ears, nose, and mouth include sensory receptors. Each receptor type transmits a unique sensory modality that eventually combines into a single perceptual frame.
Chemoreceptors are specialized nerve cells or receptors that detect changes in the chemical composition of the blood. The prefix "chemo-" alludes to the chemical makeup of the blood. The brain receives this data from the chemoreceptors to assist in maintaining the balance of the respiratory and cardiovascular systems.
They are proteins that detect and engage with particular chemicals known as ligands on the cell membranes.
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Classify each item as a first, second, or third line of defense.
First Line of Defense:
Second Line of Defense:
Third Line of Defense:
-Skin
-Mucosal membranes
-Macrophages
-Eosinophils
-Inflammation
-Fever
-Humoral immunity
-Cell-mediated immunity
-Lymphocytes
-Antibodies
Put each item into the first, second, and third category of lines of defense. The initial line of defense is made up of the skin and mucosal membranes. Macrophages serve as the second line of defense.
What is a good illustration of humoral immunity?Innate humoral immunity refers to innate immunity that is protein-based. The body's complement system, interferon, and interleukin-1 (which induces fever) are a few examples.
How does humoral immunity function?Antibody-mediated immunity is another name for homunculus immunity. B cells will develop into blood B cells, which can manufacture antibodies against a particular antigen, with the aid of helper T cells. The body's immune immune system responds to pathogen antigens that are in the environment or outside of the diseased cells.
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I need help on question 15 please
The overall force in Newtons the ostrich egg would experience would be 19.6 Newtons.
What do you mean by Force?
Force is an influence that can change the motion of an object, cause an object to change shape, or produce motion or stress in a stationary object. It is basically a vector quantity, meaning it has both magnitude and direction. Examples of forces include gravity, friction, and electric and magnetic forces.
This can be calculated by using the equation mv = p, where m is the mass of the object (1.4 kg in this case), v is the acceleration (14 meters per second), and p is the overall force. Thus, p = 1.4 kg x 14 m/s = 19.6 N.
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Which of the following is the correct order of the structures through which light passes after entering the eye?
A)
lens, pupil, cornea, retina
B)
pupil, cornea, lens, retina
C)
pupil, lens, cornea, retina
D)
cornea, pupil, lens, retina
The following is the correct order of the structures through which light passes after entering the eye : Cornea, pupil, lens, vitreous humour retina
Light travels like this:
1) Enters the cornea, which bends light. 2) Light passes freely through the pupil of the iris. 3) Light passes through the vitreous. 4) The retina captures light rays and processes them into impulses.
Some of this light enters the eye through an opening called the pupil. The iris (the colored part of the eye) controls the amount of light accepted by the pupil. The light then passes through the lens (the transparent part of the eye). The lens works with the cornea to correctly focus light onto the retina.
The eight structures in the eye that light passes through before hitting the photoreceptors are the cornea, aqueous humor, lens, vitreous humor, ganglion cell layer, inner reticular layer, inner nuclear layer, and outer reticular layer. .
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Explain the application of biology epecially the role of microbiology and biotechnology for the growing public and global health need
A, in the development effective diagnotic ,prevention ,and treatment meaure including production of novel drug and recombinant vaccine
B,in the production of nutritionally enriched genetically modified crop and anmimal to alloviate food inecurity which i a common dilemma particularly in underdeveloped countrie
Biotechnology is the application of biology to the creation of new things, processes, and creatures with the goal of enhancing society and human health.
A. Medical biotechnology
It is a subspecialty of medicine that conducts research on living cells and cell components before creating pharmacological and diagnostic products. These products support both disease prevention and therapy. Modern diagnostic and preventative medical equipment, including diagnostic test kits, vaccines, and radio-labeled biological treatments used for imaging and analysis, have been made possible by biotechnology advancements.
B. Genetically modified crop
Biotech crops can increase crop quality and, in some situations, productivity, which can increase farming's profitability. Certain of these crops can simplify tasks and improve farmer safety. Farmers might spend less time growing their crops and more time concentrating on other lucrative pursuits as a result.
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