How does natural selection change the frequency of genes or traits over many generations? Biology students conducted an experiment mimicking genetic variation and coloration. Students used different colored beans to represent animals that might be prey: mice, for example. A student in each group was the predator: a hawk. Beans (mice) were randomly scattered on multicolored floor tiles, each color within four tiles. The hawk collected mice (beans) for 10 seconds. Mice not eaten reproduced. Three generations of data a shown in the table.
Genetic variation helps to drive natural selection and potentially, evolution. Red, white, and striped beans (mice) represent offspring that are the product of meiosis and sexual reproduction. Black and speckled beans (mice) are the result of mutations. Using the student data analyze the effects of these mutations on natural selection.

A) The color mutations provided a survival advantage to these two populations of mice.

B) The advantage of the mutations is dependent on the environment and external conditions.

C) While mutations provide genetic variation they did not play a role in natural selection.

D) The speckled mutation provided an advantage while the black mutation was a disadvantage for survival.

Answer:
D) The speckled mutation provided an advantage while the black mutation was a disadvantage for survival.

Answers

Answer 1

The speckled mutation provided an advantage while the black mutation was a disadvantage for survival.

Natural selection refers to the observation that organisms that are more suited and adapted to their environment live long enough to survive and reproduce thereby passing on their favorable characteristics to their offspring.

The mutation in which the mice became speckled was shown to be an advantage from the table. Hence, the speckled mutation provided an advantage while the black mutation was a disadvantage for survival.

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Related Questions

Define bottleneck effect.


Koyi hai? ✌️​

Answers

Answer:

When disaster strikes, an ecosystem can change very quickly. When an event causes a drastic decrease in a population, it can cause a type of genetic drift called a bottleneck effect.

Hope this helps ~

Answer:

The bottleneck effect is an extreme example of genetic drift that happens when the size of a population is severely reduced. Events like natural disasters (earthquakes, floods, fires) can decimate a population, killing most individuals and leaving behind a small, random assortment of survivors.

current definition

please help​

Answers

Answer: now or like presently

Explanation:

I dont know

The population of mice in a local forest ecosystem has recently died out due to disease. In the past, these mice made up a large part of the diet of the forest fox.

What is the best prediction about what will happen to the foxes?

Answers

As their main source of food has died out through the course of time the forest fox will have a harder time finding different prey causing them to die

What is limestone?**

Answers

Answer: a hard sedimentary rock, composed mainly of calcium carbonate or dolomite, used as building material and in the making of cement.

Limestone is a sedimentary rock made of calcium carbonate (CaCO3), composed mainly of calcium carbonate or dolomite, used as building material and in the making of cement.

1. Which of the following characteristics is possessed by invertebrates?
a) exoskeleton
b) endoskeleton
c) joint appendages
d) cephalization

Answers

Answer: a) exoskeleton

Explanation:

Well, many invertebrates – and all arthropods – have a protective external casing called an exoskeleton. This literally means ‘outside skeleton’ and its role is to cover the animal’s soft tissues and also provide a rigid structure to which the creature’s muscles can attach.

Which renewable resource is not safe for the environment and why?

Answers

Answer: Biomass

Biomass produces gas or many sorts of waste products which are mostly used in burning and cooking. It is plant or animal material used as fuel to produce electricity or heat. Examples are wood, energy crops, and waste from forests, yards, or farms.

But the reason why it can be harmful is because biomass can produce gases like methane. Methane is a  greenhouse gas which can harm the environment and reduce the ozone layer that stops harmful UV light from reaching the earth atmosphere.

Show you work here using the data table 1 to calculate the energy consumed by this female sea otter.

Answers

Answer:

the female sea otter has 1

Explanation:

I’ll give BRAINLIST??What organs/organs systems does schizophrenia affect and how does it affect it?

Answers

Answer:  Schizophrenia is considered a disorder of the mind, influencing the way a person thinks, feels and behaves.

Explanation: Physical health is also important because if it is compromised, many of the benefits of improved mental health will be offset. Compared with the general population, schizophrenia patients are at increased risk of weight gain, abdominal obesity, diabetes, metabolic syndrome, and cardiovascular disease.

Answer:

Schizophrenia involves a range of problems with thinking (cognition), behavior and emotions. Signs and symptoms may vary, but usually involve delusions, hallucinations or disorganized speech, and reflect an impaired ability to function. Symptoms may include: Delusions.Schizophrenia is associated with changes in the structure and functioning of a number of key brain systems

Explanation:

Have a great day!

thrips are insects that feed on rose

Answers

Answer:

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Fraternal twins, while conceived at the same time, are not genetically identical.

Which statement best explains why these siblings are genetically different from each other?

A.One chromosome from each pair randomly passes to the sex cells during meiosis and leads to differences between the siblings.

B.One chromosome from each pair randomly passes to the sex cells during fertilization and leads to differences between the siblings.

C.Mutations occur during meiosis and lead to differences between the siblings.

D.Mutations occur during fertilization and lead to differences between the siblings.

Answers

Fraternal twins are not genetically identical because one chromosome from each pair randomly passes during meiosis and leads to differences between the siblings. Meiosis involves independent segregation of sex chromosomes.

Meiosis is a type of reductional cell division by which a parent cell produces four daughter (gametes) cells having half the genetic material.

Fraternal twins occur when two egg cells are released by the mother, which are fertilized by a different sperm.

During meiosis, sex chromosomes are separated and segregate in a random manner in daughter (sex) cells.

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https://brainly.com/question/7002092

what is the effect of atmospheric disturbances on stars

Answers

This the correct answer

Explanation:

However,when light enters the Earth's atmosphere,the different wind speeds distort the light waves,leading to distortions in the image of stars.The effects of the atmosphere can be modeled as rotating cells of air moving trubulently.

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The external appearance of traits is called: -----

a.

Ecotype

b.

Genotype

c.

Cytotype

d.

Phenotype

Answers

Answer:

d) Phenotype

Explanation:

External appearance of an individual trait is called phenotype. The term "phenotype" refers to the observable physical properties of an organism; these include the organism's appearance, development, and behavior.

PLS HELP, HELP HHHHEEEELLLLPPPP
1) How long is it's growing season for carrots.
2) How long is it's growing season for corn.

Answers

Answer:

2-4 months for carrots and about 120 days for corn

Explanation:

What is a long chain of one-ring sugar molecules?

Answers

Answer:

polysaccharide

Explanation:

Why long cell easily go through the cell

Answers

Answer:

Cells divide for many reasons. For example, when you skin your knee, cells divide to replace old, dead, or damaged cells. Cells also divide so living things can grow. ... Organisms grow because cells are dividing to produce more and more cells

This is confusing, help please

Answers

Answer:

C: the song bird

Explanation:

Birds follow a type II or in your case a type B survivorship curve. Unlike elephants which are a Type I or Type A, and the bugs are Type III or Type C in your case.

Answer: I think it would be (C)

Explanation:

I really hope this helps

Which of the following is NOT considered a form of precipitation? *
Rain
Snow
Lightning
Hail
All of the above are considered precipitation

Answers

Answer:

Lightning is not considered a form of precipitation but rather a discharge of electricity.

I don’t understand help

Answers

Answer:

A

Explanation:

not 100% sure but it seems to be the only sensible answer

AGGUCAUGCAUGGGCAUGCAU tRNA sequence for the given strand of mRNA

Answers

Answer:

look at explanation

Explanation:

basically in order to go from mrna to trna just replace

a becomes u

g becomes c

u becomes a

c becomes g

Your skeleton enables you to move.


True
False

Answers

Answer:

True

Explanation:

Your skeleton supports your body weight to help you stand and move. Joints, connective tissue and muscles work together to make your body parts mobile.

Answer:

Allows movement: Your skeleton supports your body weight to help you stand and move. Joints, connective tissue and muscles work together to make your body parts mobile.

Explanation:

please mark my answer in brainlist

similarities between the computer and the human body.

Answers

Answer:

Both of them have memory, both of them use electrical signals, both of them can retrieve and transmit data, both of them have partitions and both of them connect data in order to reach to conclusions which are logical and working

Explanation:

which fungus does contain mycelium?​

Answers

Answer:

Mycelium is part of the fungi kingdom and is the network of threads, called hyphae, from which mushrooms grow. Not all mycelia fruit mushrooms, depending on the environmental conditions, but all mushrooms come from mycelia.

Explanation:

What is the main function of nucleic acids?
A. provide genetic information
B. long term energy
C. short term energy
D. build muscle, hair, and nails

Answers

the answer is a they provide storage of genetic information

In which part of the male reproductive part do pollens found? A. Anther B. Filament C. Stigma D. Style​

Answers

Answer:

Anther

Explanation:

Stamen is a male reproductive part in which anther produce male reproductive cells.

Answer:

The stamen is made up of two parts: the anther and filament. The anther produces pollen (male reproductive cells). The filament holds the anther up. During the process of fertilization, pollen lands on the stigma, a tube grows down the style and enters the ovary.

Explanation:

A recombinant plasmid molecule is introduced into a bacterial cell by A. recombination B. nuclear transplantation C. ligation D. transformation

Answers

D. Transformation

I’m in the same area of biology currently.

need help with the top question :p

Answers

Which of the following is the best explanation
for the presence of both chloroplasts and
mitochondria in plant cells? - If plants cannot
produce enough ATP in the process of
photosynthesis to meet their energy needs,
they can produce it in aerobic respiration.
Sugars are produced in chloroplasts.

What is carrying capacity? What factors could influence the carrying capacity of a population?

Answers

Answer:

Carrying capacity can be defined as a species' average population size in a particular habitat. The species population size is limited by environmental factors like adequate food, shelter, water, and mates. If these needs are not met, the population will decrease until the resource rebound

Humans have increased the world's carrying capacity through migra:tion, agriculture, medical advances, and communication. The age structure of a population allows us to predict population growth. Unchecked human population growth could have dire long-term effects on our environment.tion

b) Give an example of an animal with radial symmetry and an example of an animal with bilateral
symmetry. (2 points)

Answers

Answer:jellyfishes, corals, anemones, and ctenophora.

Explanation:

Examples of animals that possess bilateral symmetry are: flatworms, common worms ("ribbon worms"), clams, snails, octopuses, crustaceans, insects, spiders, brachiopods, sea stars, sea urchins, and vertebrates.

Fill in the blanks below with the correct word to complete the sentence.
Water is warmed by the sun and

It is then cooled and
Finally, it is brought back to Earth in the form of

Answers

Answer:

Evaporates, Condensed, Liquid Water

Explanation:

Water is warmed by the sun and evaporates

It is then cooled and condensed

Finally, it is brought back to Earth in the form of Liquid Water

Answer:

Fill in the blanks below with the correct word to complete the sentence.

Water is warmed by the sun and evaporate

.

It is then cooled and condensation

.

Finally, it is brought back to Earth in the form of

Water

⇒ precipitation.

Explanation:

got it right 9/23/22

What is the name of the disease caused by a lack of thyroid hormones?​

Answers

Thyroiditis.Graves' disease.Hashimoto's disease.Goiter.Thyroid nodule.Thyroid cancer.
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