what is evolutionary mechanism?

pls help>-<

Answers

Answer 1

Answer:

Evolutionary mechanism refers to the changes in allele frequencies within a single population.


Related Questions

Aerobic Respiration takes place in the _________.

A. molecules
B. mitochondrion
C. stomata

Answers

Answer:

B

Explanation:

The structure of the mitochondrion is key to the process of aerobic (in the presence of oxygen) cellular respiration, especially the Krebs cycle and electron transport.

B. mitochondrion

The reaction is called aerobic respiration because oxygen from the air is needed for it to work. Energy is released in the reaction. The mitochondria , found in the cell cytoplasm, are where most respiration happens.

Can light cause changes to metal

Answers

Answer:

yes it can cause changes to metal

Answer:

No.

Explanation:

The metal can't change because light is not a physical thing. the metal can change by getting warm and/or changing color, because different types of light can cause different changes to a material when they are absorbed.

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During photosynthesis which product is formed that cannot be broken into smaller units?

Answers

Answer:

oxygen

Explanation:

6CO2 + 6H2O + light ----> C6H12O6 + 6O2

Oxygen (O2) is an element, so it cannot be broken on smaller units.

Answer:

the Glucose

Explanation:

25 points if you answer this. Genetic drift and natural selection can both be mechanisms of evolution. However, they are very different mechanisms.
Explain how genetic drift is different from natural selection.

Answers

Genetic drift is when allele frequency changes by chance , natural selection is inheriting adaptations made by the environment.

carbon dioxide + water =​

Answers

This formula will result in carbonic acid.
No no no floor gang sub to pewds

. What type of
biomolecule contains the code for making helicase?

Answers

Answer:

DNA helicase

Explanation:

DNA helicase belongs to the class of biological molecules known as enzymes, which are biological catalysts. hope that helps love!

How do rivers become large as they travel across land

Answers

Answer:

groundwater rises, adding water to rivers. tributaries combine, adding water to rivers. ice sheets melt slowly, adding water to rivers. rainfall in an area increases, adding water to rivers.

Explanation:

The answer is B please mark me as brainliest

What are the four main types of carbon based molecules.

Answers

Answer:

Lipids, proteins, nucleic acids, and carbohydrates.

Explanation:

These carbon-based molecules make up all organisms and living things. These 4 molecules are the four major types of carbon based molecules

Lipids, proteins, nucleic acids, and carbohydrates are the four main types of carbon based biomolecules.

What are biomolecules ?

Biomolecules can be defined as the basic component of all living cell and it is the primary building blocks like Carbohydrates, Proteins, Fats, Nucleic Acids.

Carbohydrates or sugars are the primary energy source of body which are composed of polyhydroxy aldehydes or ketones formed by hydrolysis reaction; It can be monosaccharide, oligosaccharide and  polysaccharides.

Proteins are the structural unit and it express character of a gene and synthesized by translation from RNA; It is a polymers of amino acids, can be up primary, secondary, tertiary and quaternary protein.

Nucleic acids are the house of all genetic material of the cell which  are up two types namely, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).

Lipids are insoluble substance as it can not dissolve in water, soluble in only in non-polar solvents, include sterols, fat-soluble vitamins, mono-, di- or triglycerides, phospholipids, etc.

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Hummingbirds drink nectar from flowers. As they pass from flower to flower,
the hummingbirds carry pollen, aiding in pollination. What kind of relationship
exists between the hummingbirds and the flowering plants?
A. Commensalism
B. Predation
C. Mutualism
D. Parasitism

Answers

C. Mutualistic relationship

Flowers and hummingbirds have a mutualistic relationship where both benefit. Flowers produce food in the form of nectar (sugar and water) to attract hummingbirds which, in turn, move pollen for the plant (pollination).

Rashida doesn’t think that skepticism should play an important role in the scientific process. She says that skepticism interferes with scientific consensus. Which statement best describes Rashida’s conclusion?
It is incorrect because skepticism helps scientists recognize when ideas are not supported by evidence.
It is correct because skepticism prevents the acceptance of creative ideas and new discoveries.
It is correct because skepticism prevents scientists from testing new ideas and communicating with other scientists.
It is incorrect because skepticism leads to the acceptance of new ideas, which can eventually gain scientific consensus.

Answers

Answer: b

Explanation: sorry if im wrong

Which of the following Venn diagrams would BEST be suited to represent the three categories of animals?

Answers

Answer:

intersecting circle and the universal affarmative

Explanation:

Which of the following does not support creating curriculum out of play?
A. Providing resources
B. Giving children freedom of choice
C. Offering structured rules and guidelines
D. Allowing sensory play with no objective measurement

Answers

Answer:

C / D

Explanation:

Cell theory states that all living things contain one or more cells. Why do you think cell theory meets the definition of
a scientific theory? Do you think it should be a scientific law? Explain your response.

Answers

Yes. Scientific laws are established statements, based on repeated experiments or observation of a particular scenario or natural events while a science theory are events or explanation of the natural world that can be repeatedly tested and verified using scientific method. That is, for it to be a Scientific Theory we must be able to test and verify it using scientific methods and for it to be a Scientific Law it must have been tested and verified repeatedly using scientific methods. Cell  theory is a tested and verified experiment

Study the structure of the plant growing on the rock in the image. Based on its structure, to which group does the plant belong?


A.
bryophyte
B.
gymnosperm
C.
pteridophyte
D.
angiosperm

How are the reproductive cycles of a fungus and a pteridophyte similar?

Answers

Answer:

a

Explanation:

A model of the carbon cycle is shown below.
The Carbon-Oxygen Cycle
combustion
combustion
respiration
volcanic
activity
respiration
photosynthesis
dissolution
degasification
weathering &
erosion
decay &
sedimentation
Which of the following can be determined based on this model?
A.
The atmosphere is the only reservoir on Earth that can store carbon in any form.
B.
Both plants and animals release carbon dioxide into the atmosphere during cellular respiration.
C.
Dead organisms and waste products do not play any role within the carbon cycle.
Factories do not emit any amount of carbon dioxide into the atmosphere.

Answers

Answer: The answer would be B

Explanation: All plants and animals release at least some amount of co2 into the atmosphere during cellular respiration

Both plants and animals release carbon dioxide into the atmosphere during cellular respiration can be determined based on the Carbon cycle model. So, the correct option is B.

What is Carbon cycle?

The exchange and recycling of carbon in the Earth's biosphere, lithosphere, hydrosphere and atmosphere is known as the carbon cycle. All living things contain the element carbon, which is also an important component of many important compounds such as proteins, lipids, and carbohydrates.

Photosynthesis, respiration, combustion and weathering are just a few of the different processes that make up the carbon cycle. Plants use photosynthesis to take up atmospheric carbon dioxide and convert it into organic molecules. Plants and other organisms then use these molecules as a source of energy.

Therefore, the correct option is B.

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A scientist has discovered a new plant species in the Amazon rainforest she tells her fellow scientist at the Playhouse she has found for Tuesday is a cone for my side about this plan is different from an organism

Answers

Answer:

It is a seeded vascular plant.

It does not depend on insect pollination.

Explanation:

The complete question is: A scientist has discovered a new plant species in the Amazon rainforest. She tells her fellow scientists that the plant she has found produces a cone. What might they say about how this plant is different from an angiosperm? Its seeds have one or two cotyledons. Its stems' vascular bundles are scattered. It does not depend on insect pollination. It is a seeded vascular plant.

The correct option would be that the plant is a seeded vascular plant and does not depend on insect pollination.

Gymnosperms are the only group of plants that produce cones. They are one of the plant groups that have vascular tissues in the form of xylem and phloem as well as been able to produce seed in the form fo cones. Hence, they are said to be seeded vascular plants.

Gymnosperms also carry out their pollination by relying solely on wind for the transfer of their pollen grain to the female organ. In other words, they do not depend on insect for pollination.

Which is the SI unit for length

Answers

Answer:

The Meter.

Explanation:

In which areas does acid rain most likely form before precipitating in locations downwind?
A large cities with a high volume of smog
B large cities with a low volume of smog
C coastal cities that are not developed
D small farming areas near lakes

Answers

Answer:

A) large cities with a high volume of smog

Explanation:

i am usually single-stranded. is it DNA O RNA ?

Answers

Answer:

RNA

Explanation:

DNA is double-stranded DNA mostly and RNA is single stranded mostly.

RNA is single and DNA is doubles

Why is this important to make new DNA?​

Answers

Answer: DNA is vital for all living beings – even plants. It is important for inheritance, coding for proteins and the genetic instruction guide for life and its processes. DNA holds the instructions for an organism's or each cell's development and reproduction and ultimately death. so it is important

what is the definition of vacole

Answers

a space or vesicle within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid. Hope this helps! :)
Have a great day

a vacuole is a cell inside of the cytoplasm.

which of these forms when moves in the directions shown by the arrows in the diagram

Answers

Answer:

A. Mountain breeze

Pls give 5 stars and thanks!

Answer:

a

Explanation:

Can anyone please give me some examples of water soluble vitamins and fat soluble vitamins ​

Answers

Answer:

water soluble vitamins are:

thiamineRiboflavinNiacinpyridoxineFolate

(all vitamin b and c vitamins are all water soluble vitamins)

fat soluble vitamins are:

RetinolErgocalciferolcholecalciferoltocopherolsmenaquinone

( vitamin A,D,E,K are all fat soluble vitamins)

Can someone please help me out here? Thanks in advance!

Answers

Answer:

Oxygen and carbon dioxide

Explanation:

Those are the two gases that are needed for us to live and are mostly present in the atmosphere and our bodies

Answer:

c !

Explanation:

Having Freckles is dominant (F), and not having is recessive (f). A mother has Ff and a father has ff. If They have a child,which genotype will make their child not have freckles.

Answers

Answer:

50 %

Explanation:

Ff x ff

We get Ff, Ff, ff and ff

since we know not having freckles is recessive only "ff" can give us no freckles.

in this case it is 50% will not have freckles. we can do this through a punnent square. I would highly advise you to learn them as they are super easy and a basic of biology

Answer:

Explanation:

hey if any one wnts to make 250 dollars text me all u have have to do are some calss and u only answer couple questions

In the previous activity, you chose an animal that interested you and listed three examples of innate behavior and three examples of learned behavior for that animal. Now research what, if any, courtship and mating rituals this animal has. Explain why you think it has or doesn’t have these behaviors.

Answers

Answer:

what grade

Explanation:

Courtship and mating rituals are diverse and can vary greatly among different animal species. They are typically involved in attracting mates, establishing pair bonds, and ensuring successful reproduction.

1. Courtship and Mating Rituals Exist: Many animal species have elaborate courtship and mating rituals. These behaviors can serve various purposes, such as displaying fitness and attractiveness to potential mates, establishing territory, or demonstrating parental abilities.

2. Absence of Courtship and Mating Rituals: Some animal species may not exhibit elaborate courtship or mating rituals. This can occur in species where mating opportunities are abundant or where the reproductive process is straightforward without the need for elaborate displays.

The presence or absence of courtship and mating rituals can depend on various factors, including ecological pressures, social structure, reproductive strategies, and evolutionary history of the species. Different species have evolved different strategies to maximize their reproductive success, and these strategies can manifest as complex courtship rituals or simpler methods of attracting mates.

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can bee wax repair the hive with the pure condition?​

Answers

Yes, But I’m in certain weather conditions

Which level of organization is best represented by the liver?

Answers

Answer:

Organ level– an organ is a structure composed of at least two different tissue types that perform a specific function within the body. Examples include the brain, stomach, and liver. Complex functions begin to emerge at this level.

Explanation:

How can chimpanzees have different traits from one another

Answers

Answer:

They have different genes just as humans do

Explanation:

Answer:

They have different genes just as humans do

Explanation:

What is chemical energy, and where is it found in
everyday life?

Answers

Answer:

Chemical energy is stored in chemical bonds and you can find it in the foods we eat.

Explanation:

Answer: Chemical energy are stored in Chemical bonds an example is sodium chloride

Explanation:

Sodium chloride is in Short is Salt. Which have been used to season foods for thousands of years.

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