5. The mechanism for evolution is natural selection. Traits become more or less
common in a population depending on whether they are beneficial or harmful.
An example of evolution by natural selection can be found in the deer mouse,
species Peromyscus maniculatus. In Nebraska this mouse is typically brown, but
after glaciers carried lighter sand over the darker soil in the Sand Hills, predators
could more easily spot the dark mice. Natural selection favored the light mice,
and over time, the population became light colored. What was the environmental
change that resulted in a change in the deer mouse?
O A. The Ice Age
O B. Environment changed color
O C. Became colder
O D. No change

Answers

Answer 1

Answer: A

Explanation: the ice age posed a new chalenge to deer mice and on the ice the preadators could spot the darker deer mice better than the light deer mice.


Related Questions

¿Todos los virus tienen la misma estructura que el Coronavirus?

Answers

No creas porque todos los virus son diferentes

Answer:

No todos de los virus en el mundo tienen la misma estructura o efecto del coronavirus.

Explanation:

No todos de los virus en el mundo tienen la misma estructura o efecto del coronavirus.

Which of the following best describes Growing Degree Day total?


A. a measure of the amount of heat needed to encourage plant growth

B. a measure of the amount of heat a plant is exposed to over a single day

C. a measure of the amount of heat a plant must experience before reaching maturity

D. a measure of the amount of heat tolerance a plant demonstrates

Answers

Answer:

C.a measure of the amount of heat a plant must experience before reaching maturity

I learned this two days ago and I believe the answer is C

Fill in the missing words : Rock, Temperature, Pressure, Freeze-Thaw, Onion- Skin, Acid Rain, Limestone, Plants, Animals, Expand, Weakens, Eroded, Transported, Wearing Away, Water, Ice, Wind

The Earth is made up of many different types of _ _ _ _. A landscape can be made up of more than one rock type.

Physical weathering is caused by changes in _ _ _ _ _ _ _ _ _ _ _ or _ _ _ _ _ _ _ _. There are 2 main types of physical weathering: _ _ _ _ _ _- _ _ _ _ (takes place when water is trapped in the cracks of rocks and freezes. The frozen water expands and enlarges the cracks in the rocks) and _ _ _ _ _- _ _ _ _ (takes place in hot desert climates. Changes in temperature cause the surfaces of the rocks to expand and contract which causes thin layers of rock to peel off!).

Chemical Weathering occurs when _ _ _ _ _ _ _ _ attack and break down rock surfaces. _ _ _ _ _ _ _ _ _ is weathered in this way.

Biological weathering involves _ _ _ _ _ _ and _ _ _ _ _ _ _ . Plant seeds can begin to grow in the cracks of the rocks. As the roots _ _ _ _ _ _ the cracks in the rock expand, the rock _ _ _ _ _ _ _ and pieces break off!

Once rocks have been broken down they may be _ _ _ _ _ _ and/or
_ _ _ _ _ _ _ _ _ _ _. Erosion is the _ _ _ _ _ _ _ _ _ _ _ of the land by _ _ _ _ _, _ _ _ or _ _ _ _.

Answers

Rock, Temperature, Pressure, Freeze-Thaw, Onion- Skin, Acid Rain, Limestone, Plants, Animals, Expand, Weakens, Eroded, Transported, Wearing Away, Water, Ice, Wind

In the case of a tick feeding off a deer, the deer would be considered _____ and the tick would be considered _________.

Answers

Answer:

The tick would be considered a parasitism and the dear would be considered a prey

Explanation:

i Hope this helps

Which statement describes the process of finding a mineral's streak?
A. When you strike it against gypsum, it leaves a scratch.
B. When you examine its surface, it looks like dull metal.
C. When you drop a piece of it in acid, a smoky gas is produced.
D. When you rub it on a white tile, it leaves a black mark.
SUBMIT

Answers

Answer: When you rub it on white tile, it leaves a black mark

Explanation:

Answer:

D

Explanation:

what was one problem the printing press fixed

Answers

It reduced time to copy texts and books

What would happen if the American bullfrog went extinct? NO LINKS!!!!!!!!!!!!!!!!!!

Answers

Answer: The death of frogs would send a ripple through the ecosystem. The number of animals that eat the frogs will die off, then the animals that eat them will go hungry, and their populations will be devastated as well. This would just keep going up the food chain

Explanation:

Invasive bullfrogs upset the balance of predator-prey interactions and competition for food and shelter, but they also may be worsening another ecological disaster in the amphibian world. ... The invasive American Bullfrog can act as a vector, harboring this fungus, with no ill effects, and spread it to other amphibians

hopefully this helps :)

Four different samples of the same kind of matter that all started at a temperature of 20 °C had differen
amounts of energy transferred to them and ended up at different temperatures.
Number the sample descriptions from 1-4 with 1 being the greatest amount of energy absorbed and
4 being the least amount of energy being absorbed

Answers

Mars element which can be at the room temperature and could also help be the same boiling point

Does anyone know how to figure the difference between dry bulb and wet bulb temperature and also relative humidity

Answers

A wet bulb will bust if The bulb itself is hot. a dry bulb won't.

where are fossil fuels found?

in the air

in the earth

in trees

in animals

Answers

B is the correct answer!Common sense, really. You wouldn't find fossils in the air.

in the earths crust, so in the earth

Hope this helped :T

Which statement best summarizes the relationship between time and distance in echolocation and sonar?

A. The closer the detected object, the slower the returning sound waves travel through a medium.

B. The farther away the detected object, the faster the returning sound waves travel through a medium.

C. The closer the detected object, the longer it takes the sound waves to return.

D. The farther away the detected object, the longer it takes the sound waves to return.​

Answers

Answer:B

Explanation:

Determine the genotype of the offspring that belongs in the box with the question mark (?)
PLZZZ ANSWER ILL GIVE 30 PTS AND BRAINLIEST

Answers

The answer is BbEe, and Brainly needs more than 20 characters

Which term is associated with asexual reproduction but not sexual reproduction

Answers

fission is asexual and only asexual

Answer:

no its fertilization

Explanation:

Suggest two ways that this type of farming can damage the environment?

Answers

Explanation:

Factory farming intensifies climate change, releasing vast volumes of greenhouse gases. Factory farming is fuelling climate change, releasing vast quantities of carbon dioxide and methane.

T




C




G


C




G






C
T






T




A
T




A




T


A




G




C


T






C


G


T




T






T
A




T




C


A




C




C

Answers

Answer:

Wow felt

Explanation:

Identify which of the following will easily pass through the membrane? A.) Protein Hormone B.) Steroid Hormone C.) Charged Ion D.) Water

Answers

Answer:

Hope this helps a bit, sorry if it doesn't. Have a good day/night! :}

Explanation:

Steroid Hormone: It is thought that, because of their lipophilic nature, free steroid hormones enter target cells primarily by passive diffusion through the cell membrane. After gaining entry to the cell, steroid hormones act as ligands for nuclear receptors and alter gene transcription

Protein Hormone: Small uncharged molecules can diffuse freely through a phospholipid bilayer. However, the bilayer is impermeable to larger polar molecules (such as glucose and amino acids) and to ions. These molecules pass across membranes via the action of specific transmembrane proteins, which act as transporters.

Water/Ion: Small polar molecules, such as water and ethanol, can also pass through membranes, but they do so more slowly. On the other hand, cell membranes restrict diffusion of highly charged molecules, such as ions, and large molecules, such as sugars and amino acids.

A substance that will easily pass through the membrane is: B. steroid hormone.

What is a membrane?

A membrane can be defined as the thin layer that separates the ineterior of a living cell from another, especially by forming its outer boundary or layers.

This ultimaetly implies that, a membrane provides protection for a living cell or an internal cell compartment from its environment.

In conclusion, a steroid hormone is a substance that will easily pass through the membrane.

Read more on membrane here: https://brainly.com/question/734740

a population of animals is split in half by a river before speciation is completed the two halves are rejoined when a drought causes the river to run dry how would this impact the two populations

A. speciation would still occur because the two halves would be too different genetically to interbreed.
B. traits that had developed through mutation would still exist only in one of the halves.
C. the two halves would be reproductively isolated.
D. individuals could now freely mate, and gene flow would increase. (this took so long to write please clap)

Answers

Answer:

D. Individuals could now freely mate, and gene flow would increase.

Explanation:

Since genes/traits are passed on from parent to offspring the gene flow would definitely increase. Since the population of animals is now brought back together by the drought, they now have more mates resulting in more and different genes combining. Therefore, the gene flow would increase.

I hope this helps! :3

10. Many trees in temperate environments have broad, flat leaves. How does this leaf structure support the function of obtaining energy? a. A flatter surface allows more oxygen to enter the leaf b. A flatter surface allows more water to be retained in the leaf during periods of dryness. A larger surface area allows more light to reach the mesophyll where photosynthetic cells are locate d. A larger surface area allows more room for photosynthetic cells:​

Answers

Answer:

A larger surface area allows more light to reach the mesophyll where photosynthetic cells are located.

Explanation:

A larger surface area allows more light to reach the mesophyll where photosynthetic cells are locate. So, the correct option is C.

What are Mesophyll cells?

The mesophyll cells are defined as the inner ground tissue located between the two epidermal cell layers of the leaf that is composed of two types of tissue which are palisade parenchyma, an upper layer of elongated chlorenchyma cells containing large amounts of chloroplasts; and a lower layer of spongy parenchyma which is spherical or oval.

A major function of leaf mesophyll cells is to contain large populations of chloroplasts, which do the photosynthetic carbon assimilation that facilitates plant growth. Cells in the mesophyll which is the tissue between the upper and lower epidermis are uniquely suited to carry out photosynthesis on a large scale.

Thus, a larger surface area allows more light to reach the mesophyll where photosynthetic cells are locate. So, the correct option is C.

Learn more about Mesophyll cells, here:

https://brainly.com/question/5252518

#SPJ6

True or False? Plants are key in the Carbon Cycle. Plants take in O2 and release CO2 into the Atmosphere.

Answers

Answer:

FALSE

Explanation:

They are key in carbon cycle, because CO2 an breathe out 02 ,while humans do the reverse of what they do

Analyzing which form of data provides the most detailed information for classifying species?

Answers

Answer: c molecular sequences. brainliest??

Explanation:

pollination is an external process. why? ​

Answers

Answer:

It requires agents to carry the pollen anther to stigma.

Explanation:

In which domain would you place the kingdom archaebacteria?

Answers

Answer:

Explanation:

The kingdom you would put archaebacteria is the kingdom called archaebacteria

The picture is Groove in a cliff

Answers

I think it might be 4

What are the major functions of the male and the female reproductive systems?
NO LINKS

Answers

Answer: These organs do the following jobs within your body: They produce, maintain and transport sperm (the male reproductive cells) and semen (the protective fluid around the sperm). They discharge sperm into the female reproductive tract. They produce and secrete male sex hormones. The human reproductive system functions to produce human offspring, with the male providing sperm and the female providing the ovum.

Explanation:

Answer:

Male:

Penis testicals sperm semen.

Female: Vagina uterus fallopian tubes ovaries

Explanation:

¿Qué estructuras y organelas son exclusivas de las células eucariotas vegetales?, ¿cuáles son las funciones de cada una?

Answers

Answer:

Las estructuras y organelas que son exclusivas de las células eucariotas vegetales son: la pared celular, los cloroplastos, las vacuolas y los plastidios. Cada una de estas estructuras tiene distintas funciones.

Explanation:  

Las células eucariotas vegetales tienen otro tipo de estructuras y organelas ya que tienen otro tipo de procesos, entre los cuales se encuentra la fotosíntesis.

Funciones:

Pared Celular: protege la membrana plasmática y toda la estructura celular. Tiene plasmodesmos a través de los cuales ingresan sustancias.

Vacuolas: almacenan sales, agua y productos residuales

Plastidios: le dan distintas características a las plantas. Algunos almacenan sustancias, otros definen su color.

Cloroplastos: son un tipo de plastidios y tienen un pigmento llamado clorofila.

hey could someone help me with this immediately!!! i’ll mark brainiest if u don’t guess or leave a link!!

Answers

When a candle burns, both physical and chemical changes occur. ... So, the melting of wax and vapourisation of melted wax are physical changes. Chemical Changes : The wax near flame burns and gives new substances like carbon dioxide, carbon soot, water vapour, heat and light.
When a candle burns, the oxygen in the air reacts and forms carbon dioxide. A new substance, the CO2 is formed. So it is a chemical change. When the candle melts, no new substance is formed and the molten wax can be again solidified and made into a candle and it is a reversible change.

Which best explains how Washington’s government manages the negative effects of water issues?

A. It builds fish ladders to help restore migration.
B. It removes fish ladders to help restore migration.
C. It requires homeowners to fix water leaks in their homes.
D. It allows more water to flow through dams to ensure supply.

it is NOT B. "It removes fish ladders to help restore migration" edge 2021

Answers

Answer:

D

Explanation:

Answer: A. It builds fish ladders to help restore migration.

Explanation:

An organism called euglena is represented by the diagram. The euglena can be classified as eukaryotic due to the presence of which
labeled part?
Euglena
Part A which allows the cell to turn sunlight into food
Part B. which allows the cell to move itself from place to place
Part C, which is centrally located and stores genetic material
Part D, which allows the organism to store water

Answers

Answer:

D. which allows the organism to store water


Scientists are uncertain about how life began on Earth.
Why?​

Answers

By studying fossils, scientists can learn how much (or how little) organisms have changed as life developed on Earth. There are gaps in the fossil record because many early forms of life were soft-bodied, which means that they have left few traces behind. This is why scientists cannot be certain about how life began.

During meiosis, homologous chromosomes line up next to each other. In some
cases, one arm of a chromatid crosses over the arm of another chromatid. What is
the result of this process?
the independent assortment of genetic material
the creation of an additional sex cell
continuity in the offspring cell's DNA
additional variation in the DNA of each sex cell formed

Answers

Additional variation in the DNA of each sex cell formed

This is known as Crossing Over and results in further variation in offspring

Crossing over is a mechanisms involved in introducing genetic variation. When the arm of a chromatid crosses over the arm of another chromatid, it results in additional variation in the DNA of each sex cell formed. Option D.

---------------------------------------

Crossing-over between homologous chromosomes (prophase 1), the random lining of homologous chromosomes (metaphase 1), and random fertilization are the mechanisms involved in genetic variation.

The Crossing-over events occur between two homologous chromosomes in the equatorial plane and make the daughter cells genetically different from the original one.

The Chiasma is the position where two homologous chromatids interchange genetic information, giving a place for new genetic material or information to be provided to descendants.

After crossing over, homologous chromosomes get separated again.  

So, according to this information, when the arm of a chromatid crosses over the arm of another chromatid, it results in additional variation in the DNA of each sex cell formed.

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