The genetic material of an organism is composed of DNA And RNA.
DNA(Deoxyribo Nucleic Acid)is the hereditary materials in humans and almost in all organisms.
RNA(Ribonucleic Acid)is a linear molecule composed of four types of smaller molecules called ribonucleotide bases.
why photosynthesis is known as the pathway for energy
Answer:
Photosynthesis is important to living organisms because it is the number one source of oxygen in the atmosphere. Without photosynthesis, the carbon cycle could not occur, oxygen-requiring life would not survive and plants would die. It transforms light to chemical energy.
that's why it's called the pathway to energy.
Explanation:
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Which process do scientists think provided Earth with an oxygen-rich atmosphere?
photosynthesis
respiration
radiometric dating
spontaneous generation
Answer:
Photosynthesis
Explanation:
Tiny organisms known as cyanobacteria, or blue-green algae conducted photosynthesis using sunshine, water and carbon dioxide to produce carbohydrates and oxygen.
Which of the following describes how the protozoan Stentor overcomes cell size limitations?
Select one:
a. They have a central vacuole filled with water.
b. They have a string of nuclei.
c. They are supported by a myelin sheath.
The statement 'They have a string of nuclei' describes how the protozoan Stentor overcomes cell size limitations (Option b).
What are protozoans?The protozoans (kingdom Protista) are unicellular single-celled organisms that generally live in aquatic environments.
The protozoan Stentor is a type of filter-feeding organism, which is heterotrophic and contain cilia.
In conclusion, the statement 'They have a string of nuclei' describes how the protozoan Stentor overcomes cell size limitations (Option b).
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A genius IQ is considered anything over 144. Let's pretend that
this is a genetic condition and that it is recessive. Genius IQ
is found in approximately 1 in 625 people worldwide (this is a
true statistic). Calculate the following:
1. The frequency of the recessive allele (genius IQ).
2. The frequency of the dominant allele (normal).
3. The percentage of heterozygous individuals (carriers).
According to the question, The percentage of heterozygous individuals (carriers). Thus, option "C" is correct.
What is the Hardy-Weinberg equilibrium theory?The Hardy-Weinberg equilibrium theory states that the allelic frequencies in a locus are represented as p and q. Assuming a diallelic gene,
p is the frequency of the dominant allele,
q is the frequency of the recessive allele.
The genotypic frequencies after one generation are
p² (H0m0zyg0us dominant genotypic frequency),
2pq (Heter0zyg0us genotypic frequency),
q² (H0m0zyg0us recessive genotypic frequency)
Thus, option "C" is correct.
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How might human population growth result in a tragedy of the commons?
A. Each birth is a common resource for the population.
B. All people use natural resources to survive.
C. People are the most important resource on Earth.
D. People have more in common than they realize.
Answer:
B: all people use natural resources to survive.
Explanation:
Which gland is responsible for your metabolism? why is this so important?.
Answer:
Thyroid gland
The thyroid gland is an endocrine gland in your neck. It makes two hormones that are secreted into the blood: thyroxine (T4) and triiodothyronine (T3). These hormones are necessary for all the cells in your body to work normally
•It plays a major role in the metabolism, growth and development of the human body.
•It helps to regulate many body functions by constantly releasing a steady amount of thyroid hormones into the bloodstream.
•Its correct functioning depends on a good supply of iodine from the diet.
The embryo becomes a fetus when a person is how many months pregnant?.
Answer:
Within 24 hours after fertilization, the egg that will become your baby rapidly divides into many cells. By the eighth week of pregnancy, the embryo develops into a fetus.
How is a plant cell built?
Answer:
Plant cells are eukaryotic cells present in green plants, photosynthetic eukaryotes of the kingdom Plantae. Their distinctive features include primary cell walls containing cellulose, hemicelluloses and pectin, the presence of plastids with the capability to perform photosynthesis and store starch, a large vacuole that regulates turgor pressure, the absence of flagella or centrioles, except in the gametes, and a unique method of cell division involving the formation of a cell plate or phragmoplast that separates the new daughter cells.
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how many chromosomes are in the daughter cells after meiosis is completed?
Answer:
23 chromosomes
Explanation:
Each daughter cell will have half of the original 46 chromosomes, or 23 chromosomes. Each chromosome consists of 2 sister chromatids. The daughter cells now move in to the third and final phase of meiosis: meiosis II.
Answer:23. Just take half of 46 away and there's your answer.
Explanation:
A(n) _________ is a device that converts substances like
hydrogen and oxygen to electricity.
A) compact fluorescent
B) energy efficient
C) hybrid vehicle
D) consumer
E) fuel cell
F) mandated
Answer:
Explanation:
Answer
A fuel cell works on the principal of converting hydrogen and oxygen to electricity. It works on the principle of breaking down the hydrogen into a proton and an electron. When electrons have passed through a passage (having created electricity) they are united with elements in the atmosphere producing heat and electricity and water.
2. Explain how the distribution and availability of resources might influence population density?
Answer:
The availability of natural resources encourages a higher population density as these can be processed and used in industry and manufacturing. Regions that experience no or few natural disasters are more likely to have a lower population density as they are safer.
State similarities and differences between the laboratory thermometer and the clinical thermometer
Answer:
Its simple
Explanation:
Answer: Similarities Both thermometers are used to measure temperature and both of them use mercury. Differences Clinical thermometer is used to measure human body temperature whereas laboratory thermometer is used to measure temperature of other object which has higher temperature than human body temperature.
H
Animals store most of their excess energy reserves as _____
and this is explained because
Animals store the extra energy as the complex carbohydrate glycogen.
What is glycogen?Glycogen is a polysaccharide of glucose. It serves as a form of energy storage in fungi as well as animals and is the main storage form of glucose in the human body.
The excess energy reserve as starch in case of plants and glycogen in case of animals.
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Gut bacteria found in the human stomach (very low pH) would be classified into which kingdom?
plantae
archaebacteria
fungi
protista
animalia
eubacteria
The 3rd one - fungi, double check
How many baby formula plants are in the united states?.
There are four major baby formula companies in the United States of America and they are Abbott, Mead Johnson Nutrition, Nestlé USA and Perrigo.
What are Baby formula foods?Baby formula foods are foods specially designed as substitutes or supplements to breastmilk for infants or babies.
Baby formula foods are designed to assist mothers who are not able to breastfeed their babies to provide their babies with the nutrients they need.
In the United States of America, there are four major baby formula companies; Abbott, Mead Johnson Nutrition, Nestlé USA and Perrigo.
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Organic material made by plants and animals is _______.
A) biomass
B) ethanol
C) geothermal
D) geyser
E) peat
Answer: A) Biomass
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Asthma is a condition that causes the airways to constrict, limiting the amount of air that can make it into the lungs. Asthma attacks are generally caused by allergens in the environment and
the overreaction of which body system?
A.Circulatory
B.Digestive
C.Integumentary
D. Immune
Answer:
immune.
the answer is D.
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3. A cell with 10 chromosomes undergoes mitosis.
(b) How many chromosomes does each daughter cell have?
Answer:
In a cell with 10 chromosomes undergoes mitosis, the result are 2 daughter cells each with 10 chromosomes
Explanation:
Cells have the ability to reproduce or replicate through 2 processes:
Mitosis
Meiosis
Mitosis differs from meiosis because the final result is always
2 daughter cells
The daughter cells are identical to the mother cell and this includes the same number of chromosomes
This means in mitosis 1 cell with 10 chromosomes leads to two identical cells each with 10 chromosomes.
Can you please give some example's of endangered animal's ? :<
Answer:
axolotls and other few species of fish
giant panda (Ailuropoda melanoleuca) ...
tiger (Panthera tigris) ...
whooping crane (Grus americana) ...
blue whale (Balaenoptera musculus) ...
Asian elephant (Elephas maximus) ...
sea otter (Enhydra lutris) ...
snow leopard (Panthera uncia) ...
gorilla (Gorilla beringei andGorilla gorilla)
Which are correct examples of physical (P), chemical (C), and biological (B) barriers? P: complement system; C: saliva; B: coughing P: coughing; C: saliva; B: complement system P: coughing; C: sneezing; B: complement system P: complement system; C: saliva; B: sneezing
The correct examples of physical (P), chemical (C), and biological (B) barriers is P: coughing; C: saliva; B: complement system.
What are barriers?Barriers are the immune defence mechanisms used by the body to prevent the invasion of microorganisms from causing harm.
Examples of immune barriers include:
Physical barrier: Example is coughingChemical barrier: Example is salivaBiological barrier: complement system.Learn more about immune system here:
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Suppose that somite stem cells commit to their cell fates by three days post fertilization. Which result would be MOST likely in the chick embryos receiving somites transplanted in the reverse order
The organs arising from quail somites develop in the reverse order because transcriptional programs activated in the nucleus can't be reversed.
What is a Nucleus?This is referred to as the part of the cell which is membrane bound and contains chromosomes.
The fate of the chick embryos receiving somites transplanted in the reverse order is mentioned above.
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in human digestion system trachea and oesophagus both connect to the
a large intestine
b stomach
c pharynx
d rectum
Explanation:
In human digestion system trachea and oesophagus both connect to the :-
b) Stomach
Answer:
b) stomach
Explanation:
In the human digestion system, the trachea and esophagus both connect to the stomach.
What condition must be met for conduction to occur
23. Power equals
A.Speed plus endurance
B. Strength times speed
C. Speed times velocity
Neither, power= energy/time
Marshall made the following table to compare the functions of physical structures in plants and animals:
Function Animal Structure Plant Structure
Provides support for the organism Skeleton
Exoskeleton Stem
Reproductive organs Testes
Ovaries Stamen
Pistil
X Skin
Fur
Feathers Waxy Covering
Bark
Which of the following should replace X?
Protect the internal organs of the organism
Protect the organism from harsh conditions
Transports water throughout the organism
Involved in reproduction of the organism
Answer:
The answer is Pistil
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Explanation:
if glucose levels get too high in our body, what diseases may occur because of it?
Answer:
Hyperglycemia or high blood glucose
Explanation:
Hyperglycemia or high blood glucose occurs when there is too much sugar in the blood. This happens when your body has too little insulin (the hormone that transports glucose into the blood), or if your body can't use insulin properly. The condition is most often connected with diabetes.
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molecules can have each of these forms of energy except
Molecules can have each of these forms of energy except light energy. The correct option is A.
What are molecules?A molecule is the smallest unit of a substance that keeps its content and properties. It is made up of two or more atoms that are joined together by chemical bonds.
Chemistry is built on molecules. The element symbol and a subscript indicating the number of atoms are used to identify molecules.
Single, neutral particles make up an atom. As neutral objects consisting of two or more atoms joined together, molecules are. A positively or negatively charged particle is called an ion.
There are three different kinds of molecules: atom-sized molecules, element-sized molecules, and compound-sized molecules.
Except for light energy, molecules can possess all of these types of energy.
Thus, the correct option is A.
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Your question seems incomplete, the probable complete question is:
Molecules can have each of these forms of energy, except:
A. light energy
B. Chemical energy
C. Sound energy
D. Kinetic Energy
13. What happens when a protein is deNtured?
Denaturation involves the breaking of many of the weak linkages, or bonds (e.g., hydrogen bonds), within a protein molecule that are responsible for the highly ordered structure of the protein in its natural (native) state. Denatured proteins have a looser, more random structure; most are insoluble.
What is thought to have caused the extinction at the end of the Cretaceous period
Answer:
To answer your question the most common belief of the mass extinction of the Cretaceous period was due to an asteroid impact.
Explanation:
Compare and contrast the left and right hemispheres of the brain, briefly describing their primary functions.
The Split-brain theory describes the differences between left brain and right brain characteristics, functions, and understand the dominance brain.
What is split-brain theory?The split-brain phenomenon is caused by the surgical severing of the corpus callosum, the main route of communication between the cerebral hemispheres. The classical view of this syndrome asserts that conscious unity is abolished
The left brain handles reading, writing, and calculations. Some call it the logical side of the brain whereas The right brain is more visual and deals in images more than words. It processes information in an intuitive and simultaneous manner.
The left hemisphere controls the muscles on the right side of the body while the right hemisphere controls those on the left.
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