The coloring of the peppered moths is an example of the differential reproductive success that leads to an increase in the frequency of certain phenotypes in a population.
What is differential reproductive success?The term differential reproductive success makes reference to certain phenotypic features that may be considered adaptive in a given environment and therefore lead to higher reproductive fitness in the individuals that carry them.
The coloring of pepper moths indicates that they are more able to survive in environments having the same or similar colors in order to avoid the presence of predators that decrease their ability to survive and reproduce.
Therefore, we can conclude that differential reproductive success is the cause that explains why peppered moths have differential colors in industrial environments in order to avoid predators that decrease their ability to survive and reproduce in such environmental conditions.
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Which of the following statements best describes a photosystem?
a collection of pigments that is responsible for generating glucose sugar
a collection of high-energy electrons that transfer energy to energy carriers,
generating ATP
an area within the cristae of the mitochondria that is responsible for generating
ATP
a collection of pigments that trap solar energy and focus it on reaction centers,
releasing high-energy electrons
A collection of high-energy electrons that transfer energy to energy carriers generating ATP is the statement which best describes a photosystem.
Photosystem I is an integral membrane protein complex that uses light energy to produce the high energy carriers ATP and NADPH. Light energy excites electrons in the electron transport chain in a photosynthetic unit.
Photosystem I is an integral membrane protein complex that uses light energy to catalyze the transfer of electrons across the thylakoid membrane from plastocyanin to ferredoxin. Ultimately, the electrons that are transferred by Photosystem I are used to produce the moderate-energy hydrogen carrier NADPH.
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f m∠1 = (2x + 16)º and m∠6 = (8x − 6)º, what is m∠1?
in degrees
Answer: Find the answer in the problem
Explanation: ∠1 and ∠2 are complementary, and m∠2 = 32 . Find m∠1. m∠1 + 32 = 90 Substitute 32 for m∠2. m∠1 = 58 Subtract 32 from each side.
Which phenotype is most likely determined by multiple genes?
a phenotype where a only a single allele is sufficient for expression.
a phenotype where the heterozygote displays a discrete intermediate between two homozygotes.
a phenotype where heterozygotes display the phenotypes of both alleles they carry
a phenotype that varies across a continuous spectrum
a phenotype that, when observed in a mother, will certainly be observed in her son
A phenotype where only a single allele is sufficient for expression.
Polygenic traits are traits that are influenced by more than one gene such as height or skin color. Because multiple genes are involved, polygenic traits do not follow Mendelian inheritance patterns. A pleiotropic gene is a single gene that controls multiple traits. While studying the genetics of peas.
Gregor Mendel made an interesting observation regarding the colors of different parts of plants. Pleiotropy occurs when a gene affects two or more seemingly unrelated phenotypic traits. Genes that exhibit such multiple phenotypic expressions are called pleiotropic genes. The causative variant of the phenotype requires that two copies appear in an individual.
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13) Write two problem questions about something you can observe right now then write two hypotheses for the problems previously created.
The hypotheses "pollutants can drastically affect global temperature" or "chlorofluorocarbons effectively alter the ozone layer" can be used to investigate two potential questions, including how pollutants might affect global warming and why chlorofluorocarbons harm the ozone layer.
How do hypotheses work?A hypothesis is a proposed explanation for a phenomenon (plural: hypotheses). If a hypothesis cannot be tested by the scientific process, it cannot be referred to as a scientific hypothesis. Observations from the past that cannot be fully explained by the body of knowledge at this time often serve as the foundation for scientific ideas. Although the phrases "hypothesis" and "theory" are sometimes used synonymously, a scientific hypothesis is distinct from a scientific theory. A recognized theory that has gained shaky support and is advanced for further study is called a working hypothesis.
Therefore, we may conclude that by using the scientific method, which comprises conducting experiments to support or deny the hypothesis, hypotheses like, for example, whether pollutants may effect global warming by acting as greenhouse gases, can be solved.
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land animals were found in the same layer as the volcanic ashes in the dinosaur provincial park. what does this tell you about the age of the fossils? what else can this tell you about these fossils besides the age
Answer:
it tells you that the age of the fossils of the land animals is the same as the date the volcano erupted.
Explanation:
Need help answering the questions
Answer:
i cant see them properly,can u scan?
Explanation:
Color blindness is
a recessive trait. The gene for color blindness is on the X-
chromosome. The family tree below shows the trait of color blindness. The
only unknown is the mother in the first generation.
I.
I1.
What must be true about the mother?
A. She is a carrier for color blindness.
B. She only has one X chromosome.
C. She is color-blind.
O D. She has no recessive color blindness alleles.
She carries the gene for color blindness, which makes choice (A) the right one.
The mother of this family tree is a carrier of color blindness, which is the accurate statement about her.
Color blindness: what is it?Having color blindness prevents you from seeing colors normally. Another term for it is color deficiency.
A person with this ailment is unable to discern between various hues.
Greens and reds are the most typical colors, but blues can also be affected.
Only males are affected by this disorder, but since females are also carriers of the recessive gene, they can pass the gene on to the next generation.
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Greatest sour fruits?
Answer:
For me I personally really enjoy eating lemons and limes.
Explanation:
Select the correct answer.
The motion of a car on a position-time graph is represented with a horizontal line. What does this indicate about the car's motion?
A. It's not moving.
B.It's moving at a constant speed.
C.It's moving at a constant velocity.
D.It's speeding up.
What role does the government play in economics?
A .It creates and administers anti-trust legislation.
B. It regulates businesses and their practices.
C.It corrects for market failures.
D.All of these statements are true.
Governments provide the legal and social framework, maintain competition, provide public goods and services redistribute income, correct for externalities and stabilize the economy.
Question 1-3
The unique properties of water enable life to exist on Earth. Which of these is a property of pure water?
It dissolves many substances
o its sold form is denser than its liquid form.
o it is slightly more acidic than air.
o It has a low heat absorption capacity:
ALL
It dissolves many substances.
Water is used in the breakdown of molecules in metabolic processes. It will dissolve what cells use for energy and give that energy in the process.
Question 2 of 10
How are meiosis and mitosis different?
•
A. Mitosis produces haploid cells and meiosis produces diploid cells.
•
B. In mitosis, cells go through telophase, but in meiosis, they do not.
• C. Only meiosis results in a reduction in chromosome number.
• D. Chromatids are formed only during the process of meiosis.
SUBMIT
Answer:
C -> Meiosis reduces the chromosome number
Explanation:
A -> Mitosis makes diploid cells & meiosis makes haploid cells
B -> Both go through telophase
D -> Chromatids are formed during both processes
On a graph, the vertical axis is
the y-axis and the horizontal
axis is the x-axis. On what axis
should the INDEPENDENT
VARIABLE be placed?
• on the horizontal or X-axis
• on the vertical or y-axis
Answer:
The independent variable belongs on the x-axis (horizontal line) of the graph and the dependent variable belongs on the y-axis (vertical line). The x and y axes cross at a point referred to as the origin, where the coordinates are (0,0)
Explanation:
when one changes so does the other
15. What process is represented by this picture? *
Answer:
Should be Photosynthesis
Explanation:
prove me wrong
Alex opens the bread drawer and discovers a moldy loaf of bread. Describe what alex can conclude about the mold using the cell theory?
Based on the cell theory, Alex can conclude that a particular kind of fungus called mold grows on both plants and mammals. It resembles a cluster of mushrooms under a microscope.
The roots that the stalks, or sporangiophores, are linked to enlarge as they mature into soft meals like bread. Sporangia, which create spores that launch into the air and drift to a new host to multiply, are found atop the stalks.
What are Fungi?Fungi are a group of spore-producing organisms, such as molds, yeast, mushrooms, and toadstools, that feed on organic matter.The presence of chitin in fungi's cell walls distinguishes them from plants, bacteria, and some protists and separates them into a separate kingdom. Like animals, fungi consume matter that has already been dissolved in their surroundings. Typically, this is done by secreting digestive enzymes into the environment. They do not photosynthesize, fungi. They move through growth, except spores (some of which are flagellated), which can move through the air or water. In ecological systems, fungi play a key role in decomposition.The nuclei of fungal cells are membrane-bound and contain chromosomes with coding and non-coding DNA segments known as exons and introns, respectively. Membrane-bound cytoplasmic organelles found in fungi include mitochondria, membranes containing sterols, and ribosomes of the 80S type.To learn more about Fungi, refer to:
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The cells of the cheek become blue when the stain methylene blue is added which property of the cell membrane does this show
Answer:
So methylene blue when brought to a slide of human cheek cells the nucleus and phone membrane and so forth turns into genuinely visible to facilitate gazing the slide under the compound microscope.
Is the amount of water on our planet is the same today as it was 5,000 years ago. How do we know?
what do we call the outer layer of the nucleus
The outer layer of the nucleus that separates it from the cytoplasm is the nuclear envelope. It is considered as a highly regulated barrier and is described as a double-membrane structure which is the outermost part of the nucleus. It is the passageway of molecules from the nucleus to the cytoplasm. It isolates the DNA from molecules that can cause its damage and affect its different functions.
Suggest how climbing to the top of other plants helps Convolvulus survive.
They climb over other plants to reach sunlight without wasting energy on growing their own self-supporting shoots common convolvulus are climbing and scrambling weeds with large white or blue.
What is importance of plant?Plants are incredibly important to the world and to all other living things. The oxygen that plants produce from their leaves following absorbing carbon dioxide is what humans and other animals need to breathe. All living things must eat plants in order to survive. Plants can also purify water. They provide a variety of things for the benefit of humanity, including food that we eat, air to breathe, clothing to wrap our bodies, timber, medicine, shelter, and many other things.
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Which type of structure conveys bile from the liver to the gallbladder?
a. vein
b. sphincter
c. duct
d. artery
e. tubule
When amino acids are deaminated, the immediate products are ammonia and often a _____.
a. keto acid
b. uric acid
c. gluco acid
d. folic acid
e. fatty acid
Answer:
Explanation:
1. Duct type of structure conveys bile from the liver to the gallbladder.
2. When amino acids are deaminated, the immediate products are ammonia and often a keto acid.
Write the exchange reaction for the change that occurs when a potassium fertilizer is added to a humus micelle, which initially has adsorbed calcium ions on enolic groups.
The exchange reaction for the change that occurs when a potassium fertilizer is added to a humus micelle is Cation Exchange Capacity (CEC).
What is humus micelle?What are cations, which are pronounced "cat-eye-ons," first. They are positively charged ions, to put it simply. We are particularly concerned about the soil cations calcium (Ca), magnesium (Mg), potassium (K), and hydrogen (H).
The quantity of clay and/or humus in the soil affects its ability to store and exchange cations. These two negatively charged colloidal materials serve as the soil's main cation storage facility.
Sandy soils with little organic matter (OM) have a low CEC, but heavy clay soils with lots of OM have significantly higher cation-holding capacities.
Therefore, Cation Exchange Capacity is the exchange reaction for the change that happens when a potassium fertilizer is given to a humus micelle (CEC).
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Types of carbohydrates
Explanation:
There are three main types of carbohydrates:
Sugars. They are also called simple carbohydrates because they are in the most basic form. ...
Starches. They are complex carbohydrates, which are made of lots of simple sugars strung together. ...
Fiber. It is also a complex carbohydrate.
Hello, see below.
So, carbohydrates can be rich in certain foods such as rice or fruit. They are poor in fish or eggs. The list goes on. Here is where we found out the types and what exactly a carbohydrate (carb. for short) is.
One of the four macromolecules, a carbohydrate or sugar, is usually the nutrient found in the greatest concentrations in a balanced diet. Glucose is the smallest kind of carbohydrate. Monosaccharides, polysaccharides, and disaccharides are the three different forms of carbohydrates. Hydrogen bonds, commonly known as hydrolosis, are present in disaccharides and polysaccharides. The hydralase enzyme shatters their connections. It is specifically carbohydrase in the case of carbs. If you look for the pattern, you'll realize that the majority of enzyme names end in "-ase."
Monosaccharides (the ‘sweet’ sugar):
In Latin, the prefix "mono" denotes "one." They are also frequently referred to as "simple sugars" since they only contain one sugar molecule. Fructose and glucose, the sugars found in sweet foods like chocolate, are examples of monosaccharides (a sugar found in many fruits). Prior to exercise, monosaccharides, particularly glucose, are frequently thought to be advantageous for athletes or to "provide a burst of energy." This is because they are tiny, which means that once you drink them, they rush to the circulation and are quickly absorbed by the body without having to be broken down first. Due to their high glucose content, most energy drinks and sports beverages.
Disaccharides:
Di is a prefix that denotes two. This is due to the fact that they have two sugar molecules joined together by hydrogen and can be converted by the enzyme hydralase, more precisely a carbohydrase, into lone monosaccharides. Examples of disaccharides include lactose, which is the sugar present in milk and is metabolized by lactase, sucrose, which is mostly found in plant stems like sugarcane and is metabolized by sucrase, and maltose (broken down by maltase, a sugar found in wheat and cornmeal).
Polysaccharides:
'Poly' is a prefix that meaning numerous. This is due to the fact that they contain more than two sugar molecules that are also hydrogen-bonded, which allows the hydralase enzymes, in particular carbohydrase and even more precisely, AMYLASE, to break them down into disaccharides and eventually monosaccharides. They are sometimes called "complex sugars." Starch, an unsweetened sugar found in savory meals like bread, pasta, and rice, is an example of a polysaccharide. It's the sugar created and stored during photosynthesis, and it's frequently found in foods related to plants, including cellulose (the sugar used to build a plant's cell wall and keep it strong) and glycogen (the equivalent of starch in humans). Instead of storing starch, we store glycogen in our liver and muscles).
Because they play a part in supplying energy, carbohydrates are an essential ingredient for a balanced diet. Despite having a larger energy content than carbs, the body gets the majority of its energy from carbohydrates since they are simpler to digest. In a balanced diet, fats should be present in moderation since they are typically stored rather than used as a source of energy. The body uses fat for relatively little energy and only starts to burn fat as a source of energy when there isn't enough carbohydrate available to do so. In addition, carbohydrates are the only fuel source used by the body while it is in a normal state.
Thanks for reading,
Eddie
The Stratosphere contains the Ozone Layer which protects the Earth from harmful Ultraviolet (UV) rays from the sun.
Question 5 options:
True
False
The Stratosphere contains the Ozone Layer which protects the Earth from harmful Ultraviolet (UV) rays from the sun is referred to as a true statement.
What is Ozone layer?This is a layer which is located in the stratosphere and contains a large amount of ozone hence its name. It is also responsible for the absorption of the harmful ultraviolet rays from the sun which may cause skin cancer and other medical conditions.
The ozone layer thereby acts as a protector of the earth against these types of rays and is therefore the reason why true was chosen as the correct choice.
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identify the independent variable and depended variable in each of the following problem
Guinea pigs are kept a different temperatures for 6 weeks percent weight gain is recorded
IV:
DV:
CV:
In an experiment where Guinea pigs are kept at different temperatures and percent weight gain is recorded the dependent variable is the percent weight gain, while the independent variable is the temperature.
What is the independent variable?The independent variable (in this case temperature) is the variable that does not change along with other variables in the experimental conditions, while the dependent variable is modified by the independent variable.
Therefore, we can conclude that the independent variable is one that causes a change in the dependent variable, it is a cause vs effect relationship. Moreover, the control variable stays the same throughout the experiment (in this case, the time of 6 weeks).
Complete question:
Identify the independent variable and dependent variable in the following problem: Guinea pigs are kept in different temperatures for 6 weeks and percent weight gain is recorded.
Identify the Independent Variable (IV), Dependent Variable (DV), and Control Variable (CV).
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50 POINTS CAUSE IM REALLY STUCK ON THIS )(FIRST TO ANSWER GETS BRAINLIEST)(EXPLANATION PLEASE AND THANK YOU I NEED THESE ANSWERS IN COMPLETE SENTANCES IF POSSIBLE I NEED THESE BY TODAY) What are eukaryotes? Give some examples..
What happens as an organism increases in size? Why does this happen?
What happens when a cell divides?
Can multicellular organisms be microscopic?
What is one structure found in giant kelp? What is its function?
What is one structure found in a banyan tree? What is its function?
What are the advantages of being multicellular?
What is the function of collar cells in sponges?
What are the disadvantages of being multicellular?
How are multicellular organisms organized?
Why do organisms have organ systems?
What are some of the special organs that help a fish survive in its environment?
The answers about eukaryotes and multicellular organisms are as follows:
Eukaryotes are cells having well-defined nuclei.Examples of eukaryotic organisms are algae and fungi.Cells divide when an organism increases in size. This occurs to limit cell size.When a cell divides, the nucleus as well as other cellular materials divide.Multicellular organisms can be microscopic.The chloroplast is one structure found in giant kelp. Its function is in photosynthesis.The root is a structure found in a banyan tree. It provides stability and nutrients.The advantages of being multicellular include having specialized organs and tissues as well as having larger body sizes.The function of collar cells in sponges is to move water through the sponges.The disadvantages of being multicellular include large amounts of energy and slow metabolism.Multicellular organisms are organized into four levels - cells, tissues, organs, and systems.Organisms have organ systems for specialized functions.The special organs that help a fish survive in its environment include the fins and the gills.What are eukaryotes?Eukaryotes are organisms that have a membrane-bound nucleus as well as other cellular organelles.
Multicellular organisms are organisms that have many cells.
The cells are specialized and perform specific functions for the organism.
Multicellular organisms may be organized into tissues, organs, as well as organ systems.
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Which statement does the kinetic theory explain?
Heat is due to potential energy.
Heat is due to potential energy.
Heat is due to temperature.
Heat is due to temperature.
Heat is due to the motion of molecules.
Heat is due to the motion of molecules.
Heat is due to Pascal´s principle.
Answer: Heat is due to the motion of molecules.
Explanation: Took a quiz about this awhile back lol
Muscles work together to produce movement. As one muscle _________ ., the other one _________.A. contracts, relaxesB. pulls, contractsC. pulls, pushesD. relaxes, pushes
Muscles work together to produce movement, as one muscle contracts, the other one relaxes, as stated in the first answer option, and this is possible, because of in our muscles, we have muscle units that allow this process, they are known as myosin and actin, which if activated (actin) with Calcium ions, produce a conformational change in this later fiber that allows myosin to join it with its previous stimulation with ATP.
Penny Experiment
Which liquid slowed the speed of light the most? Explain how this is related to the index of refraction of that liquid.
Water
Soapy Water
Answer:
You might have heard people talk about Einstein’s speed of light, and that it’s always the same. The part that most people leave out is that this is only true in a vacuum—when there’s no pesky molecules of air or water to slow it down. But when light moves through a more familiar medium like air, it moves more slowly due to the interactions of individual photons with the molecules in the material. In general, the more optically dense the medium, the slower the light will move. So what happens to the light when it goes from one medium to another?
Light changes speed
Imagine that you and your friends are at the beach. You all decide to swim together, so you link arms and approach the water as a straight line. As you start walking into the water, you all slow down, because it’s harder to walk through water than through air. So imagine that you approach the water at an angle relative to the shoreline. The person on the end will meet the water and slow down first, then the next person in line, then the next, until everyone is walking through the water. Because one end of the line slowed down before the other end, the line of people becomes crooked, with the people who are still on the beach at a different angle relative to the water’s edge than the people who have already entered the ocean.
Beach example diagram
You can say that the water bends the path of of each individual toward a normal line drawn perpendicularly to the shoreline, since the people still on the shore are bent further away from the shoreline than those in the water.
The same thing happens to a light ray when it moves from air to water, or from any fast medium to a slow medium: it bends toward the normal.
Light ray bending to normal diagram
Least time principle
Another way to think of this is to imagine you and your friend are racing out to a raft in the middle of a lake. You have to travel across a beach and then through the water.
Beach and raft example diagram
Your friend decides to make a beeline for the raft and runs down the beach. You know that you can run faster than you can swim, so you head toward the water at an angle so that you run for longer than you will swim.
Beach and raft example diagram with paths overlay
Sure enough, your strategy pays off, and you get to the raft first. Your friend took the shortest path in terms of distance, but you took into account the difference in speed in each medium, and took the shortest path in terms of time. That means you took the path of least time.
Light does exactly that when moving between mediums. It takes the path that will take the shortest amount of time, when you account for the difference in speed between the mediums.
For example, imagine you are looking out the window. You have air, glass, and then air again. Glass is denser than air, so the light from outside passes from a fast medium, through a slow medium and into a fast medium again. The light will take the path from outside to your eye that spends the least time
Light diffraction through glass diagram
You can also see that the rule from earlier still applies: when the light enters the glass the ray is bent towards the normal. When it leaves the glass, it is bent away from the normal, and regains the same angle as before it entered the glass.
Light diffraction through glass diagram with overlay
Consider the following
Say you’re at the aquarium, and there’s a tank that’s totally full of water, so there’s glass over the top and sides. If you stand back a little, you can see the same stingray through the top of the tank and the wall of the tank.
Aquarium refraction diagram
Because you see the light coming through the glass at two different points, you see two images of the same stingray.
What contribution did Jonas Salk make to science in the 1950s?
O A.
He invented DDT, the "miracle" pesticide.
• B.
He designed the first US satellite.
O c.
He developed smaller computers.
• D.
He created a vaccine against polio.
La respuesta es (D) the answer is D
Answer: The correct answer is D. He created a vaccine against polio.
Explanation: In 1954, Salk undertook a large-scale national study, enrolling over one million pediatric subjects. The next year, on 12 April 1955, he announced the results: the vaccine was both safe and efficacious. Subsequent data showed that in 1955, there were approximately 29,000 cases of poliomyelitis in the US.
Carrie wants to bake a cake. Before she starts, she thinks through the steps of buying the ingredients, measuring the ingredients, and mixing the ingredients. Which technique BEST describes what Carrie is doing?
A.
mental models
B.
mental simulation
C.
categorization
D.
functional fixedness
The Carrie is doing is functional fixedness.
Compassionate touch includes holding the patient's hand, massaging the patient's back, gently repositioning the patient, or engaging in conversation to improve the patient's comfort and safety, self-esteem, trust in the caregiver, and mental health. means to improve physical health. Get training from OSHA to understand how to use the MSDS.
In a caring relationship, the patient and caregiver get to know each other and both move toward a healing relationship. According to Swanson's theory, it best describes knowledge. Swanson's theory explains that knowledge is the effort made to understand an event. Select and personalize interventions that actually help patients. Nurses should try to understand relevant events in the patient's life.
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