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

What part of a plant is most of photosynthesis happening?

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Answer:

the chloroplasts of the plant cell

Explanation:

What is the type of cell show in the circle plant cell,prokaryote cell,eukaryotic cell,egg cell?

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Prokaryotic, it has a flagellum and no nucleus.

My parents are tall but I’m short am I adopted???

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Answer:

Nope. You get your height genes from both sides of your family - and you can end up taller or shorter than either or both of your parents. You never know if some of your ancestors might have contributed genes.

Hope this Helps!

-Lexie

Eukaryotic organelles can be classified into membranous and non-membranous organelles. Identify them (list them)

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Answer:

fluid-filled organelles are membranous. Nonmembranous organelles are ribosomes, cytoskeleton, nucleolus, and centrosome

Explanation:

Can people develop PTSD vicariously? How different are the experiences of those who develop PTSD vicariously compared with people who develop it through firsthand experience?

Answers

Answer: certain people can develop PTSD vicariously some people cant but some can there is a huge difference between them people that experience in first hand have some what worse PTSD becuase it was first hand and not vicariously

Explanation:

trust me

In cocker spaniels, solid color (S) is dominant over spotted (s). If a solid male is crossed with a spotted female and they produce all solid colored puppies, the genotypes of the parents must be:

Answers

Answer: the genotypes must be solid that is. if the male is a solid colored genotype

Cells spend most of their time in what phase?

Answers

Answer:

A cell spends most of its time in what is called interphase

Explanation:

What does it mean for a bacteria or protist to be photosynthetic?
O They are responsible for disease growth.
o They are only responsible for the decomposition of compost.
They are a primary producer of biomass in the ocean.
They are multi-cellular organisms.

Answers

C is the right answer

If a bacteria or protist is photosynthetic that means they are the primary producer of biomass in the ocean.

What are primary producers?

Primary producers are organisms that produce their own food through the process of photosynthesis or chemosynthesis. These organisms are the base of the food chain in most ecosystems, as they provide the energy that drives the ecosystem.

Photosynthetic primary producers, such as plants, algae, and some bacteria, use energy from sunlight to convert carbon dioxide and water into glucose, a type of sugar. They release oxygen as a byproduct of this process.

Chemosynthetic primary producers, such as some types of bacteria, use energy from chemical reactions to convert inorganic substances into organic matter. These reactions typically involve the oxidation of sulfur compounds or methane, and they occur in environments where sunlight is not available, such as deep ocean vents and underground coal mines.

Primary producers are important because they provide the energy that drives the food chain and support the rest of the ecosystem. Without primary producers, higher-level consumers, such as herbivores and carnivores, would not have a source of energy.

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An area that has been sampled to have a large population of organisms. Does this represent high biodiversity? Why or why not?

Answers

An area that has been sampled to have a large population of organisms is

regarded as having a high biodiversity.

Biodiversity is defined as the condition in which areas have a high amount

of plant and animal species present there. Any place with a large population

of organisms is said to have a high biodiversity while places with low

population of organisms have low biodiversity.

The stated facts therefore makes an area that has been sampled to have a

large population of organisms represents high biodiversity.

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What is a plant produced from a cross between two plants with different genetic constituents called

Answers

Answer:

What is a plant produced from a cross between two plants with different genetic constituents called hybrid plant.

Hybrid is a plant produced from a cross between two plants with different genetic constituents.

WHAT IS A HYBRID?

A hybrid is an individual organism produced from a cross between two parent organisms with different genetic constituent.

For example, a mule is a hybrid formed from a cross between a horse and a donkey.

Therefore, a plant produced from a cross between two plants with different genetic constituents is called hybrid.

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True and False:
1. (______) Fungi and bacteria are both prokaryote organisms

2. (______) Some Fungi reproduce both sexually and asexually.

3. (______) Saccharomyces cerevisiae reproduce sexually by budding.

4. (______) Lactophenol cotton blue is mostly used for staining the dark mold

5. (______) Yeast is regarded as multicellular fungi and molds are unicellular fungi.

Answers

Answer:

1. Falso

2. Falso

3. Verdadero

4. Falso

5. verdadero

Explanation:

1. Las células de los animales, las plantas y los hongos son eucariotas

2. Los hongos se reproducen sobre todo por medio de esporas

3. cerevisiae se reproduce tanto asexual y sexualmente levaduras se reproducen asexualmente mediante un proceso conocido como gemación.

4. La tinción de Azul de lactofenol se emplea para observar hongos.

5. Los hongos pueden ser unicelulares o pluricelulares. Las levaduras son hongos unicelulares

Why is it that dominant diseases are not as common as recessive ones?

Answers

Answer:

Mainly because if a disorder is dominant, then it will be manifested by all who have the gene. If the disorder is severe, then it will reduce the chances of the individual surviving to grow up and reproduce (unless the disorder only manifests symptoms in later life). If they do reproduce, then 50% of their offspring will inherit the gene, and be at a similar disadvantage in reproduction. Thus, there is likely to be selection against the gene. By contrast, a recessive disorder is only manifested if both parents pass on the abnormal gene, and an individual with one gene for the disorder is usually at no disadvantage. Thus, there is much less selection against abnormal recessive disorders.

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.

If all mammals today evolved in 65 millions years from a common ancestor, and if one species took 100,000 years to evolve, how many ticks would tjis be?

Answers

Answer:

650

Explanation:

How do protozoa and algae differ?

Answers

algae makes their own food while protozoa just digest things

Whatcha are the three cells of the cells theory

Answers

Answer:

2 and 3 are the other ones

Explanation:

Which best explains the changes in borders shown on these two maps?.

Answers

Answer:

Explanation:

There are clear differences in territorial borders. The United States gained not only the land in its expansion but the authority that goes with it. More especially they have greater access to wealth and resources giving them an edge in purchasing and owning more and more lands and territories.

What properties do all liquids share

Answers

They have definite volumes, but no shape, they can change shapes based on the shape of the container.

1. A molecule that contains only carbon and hydrogen is called a
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carbohydrate
carbonyl
hydrocarbon
hydroxyl

Answers

Answer:

hydrocarbon

Explanation:

It's called a hydrocarbon

In 2018, the average age for first marriage in the United States was 29.8 years for men and 27.8 years for women. These ages for first
marriages are

Answers

Those ages for first marriages are averages

These ages for first marriages are Average age .

What is the average age of first marriage in the United States?

The median age at first marriage for women was 28 years in 2015-2019, up from 26.3 in 2006-2010. The median age at first marriage for men was 29.9 years in 2015-2019, up from 28.1 in 2006-2010.

What is the median age at first marriage for women?

In 2019, the median age for the first wedding among women stood at 28.4 years.

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Drag each tile to the correct location.
Match each process to where it occurs in the carbon cycle.

Answers

Answer: In order:

1. Ingestion

2. Decomposition

3. Fossilization

4. Combustion

Explanation:

Which of the following ecological levels does not describe interacting biotic and abiotic factors in an area?

A. Biome
B. Community
C. Ecosystem
D. Habitat

Answers

Answer:

habitat

Explanation:

The ecological levels do not describe interacting biotic and abiotic factors in an area's habitat. The correct option is D.

What is a habitat?

A habitat is a place where physical or biotic factors are presented. This is a place where all the factors are present to live a species with all suitable conditions.

Habitat of different species is different. They live in their suitable habitat to grow and reproduce accordingly. If a species is moved from its habitat, then it may have difficulties in surviving.

So habitat is not a place where all biotic and species abiotic factors are present, it is a place where all living factors are present that are necessary for the living of a person. So, it is not the ecological level of  interacting biotic and abiotic factors in an area

Thus, the correct option is D. Habitat.

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Sand is a type of mixture A mixture is a _____

Answers

Answer:

heterogeneous mixture

Answer:

sand is a Heterogeneous mixture. Heterogeneous mixture has two or more chemical substances.

A mixture is a material made up of two or more different chemical substance/substances which are not chemically combined!

Explanation:

hope this helped ^_^

In which state elements occurs?​

Answers

An element is said to exist in free state if it does not combine with any other element. Rather, free state elements are stable even without combining.

What stage of cell respiration is being shown above?

Answers

The stage of cell respiration that is being shown above is oxidative phosphorylation. During this stage, the transport of electrons is coupled to the generation of an electrochemical gradient.

Cellular respiration can be defined as a series of metabolic reactions by which aerobic cells generate energy in the form of ATP.

Cellular respiration has three main stages: glycolysis, the Krebs cycle and oxidative phosphorylation.

During oxidative phosphorylation, the transport of electrons across the mitochondrial membrane is coupled to the generation of an electrochemical gradient, which is then used to generate ATP by an ATP synthase as shown in the figure.

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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.

How could plate tectonic movements affect the evolution of life?

Answers

Answer:

A planet with oceans, continents, and plate tectonics maximizes opportunities for speciation and natural selection, whereas a similar planet without plate tectonics provides fewer such opportunities. Plate tectonics exerts environmental pressures that drive evolution without being capable of extinguishing all life. Explanation: trust :0

is menstural cycle also called periods?​

Answers

Answer:

yes.

Explanation:

However we dont call them 'periods' just simply 'period'

us girls will typically say 'I'm on my period' rather than 'I'm on my periods'

La importancia de la biología en el cambio climatico

Answers

Answer:

¿Qué tiene que ver la biología con el cambio climático?

El cambio climático puede alterar la compatibilidad entre los organismos y su entorno local, reduciendo la supervivencia y la reproducción y provocando impactos posteriores en las poblaciones o distribuciones de especies en las regiones geográficas. Los cambios en el clima pueden beneficiar a algunas especies y causar la extinción de otras.

Explanation:

Which of the following causes the change from day to night?

Answers

Answer:

^

Explanation:

The Earth orbits the sun once every 365 days and rotates about its axis once every 24 hours. Day and night are due to the Earth rotating on its axis, not its orbiting around the sun. The term 'one day' is determined by the time the Earth takes to rotate once on its axis and includes both day time and night time.

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