Which is the source in variations in a population of organisms?
A. Changes in environment.
B. Changes in genes.
C. The interaction of genes with an environment.
D. The interaction of individuals with an environment.

Answers

Answer 1

Answer:

The change in environment

Explanation:

Because they need to adapt to live

Answer 2
A
Because organisms evolve to adapt to new environments

Related Questions

Study the table about Earth’s interior.

A 4 column table with 5 rows. First column is unlabeled with entries: Crust, uppercase mantle, Lower mantle, Outer core, Inner core. Second column is labeled Thickness in kilometers with entries: 30, 720, 2,171, 2,259, 1,221. Third column is labeled Density in grams per centimeters cubed, divided into Top and Bottom columns. Top entries are: 2.2, 3.4, 4.4, 9.9, 12.8. Bottom entries are 2.9, 4.4, 5.6, 12.2, 13.1. Fourth column is labeled Types of Rock Found with entries: Silicic rocks, Peridotite, Magnesium and silicon oxides, Iron plus oxygen, Iron plus oxygen.

Which conclusion is supported by information in the table?

The mantle is thinner than the crust.
The core is the thickest of Earth’s layers.
The inner core is thicker than the outer core.
The mantle is the thinnest of Earth’s layers.

Answers

Answer:

a) No

b) Yes

c) No

d) No

I hope this helps you

Answer:

B

Explanation:

Which is NOT an example of a structural adaption?
A. a pelican's pouch-like beak
B. Camouflaged seahorses
C. The migration of birds
D. dense fur on a brown bear

Answers

Answer:

D

Explanation:

Your sooo wellcome Honey

D) dense fur on a brown bar

Please Help!!!! Thank You! 15 points!

Answers

Okay what am I answering for you

Answer:

okay what is the question

a travel agency wants people to go on a tour of a mountain region with many glaciers. write a paragraph for a travel brochure describing what people will see on the tour. in your answer, include features formed by glacial erosion and deposition
God bless, stay safe, and happy holidays! :)

Answers

Answer:

Cheap paper writing service provides high-quality essays for affordable prices. It might seem impossible to you that all custom-written essays, research papers, speeches, book reviews, and other custom task completed by our writers are both of high quality and cheap.

Explanation: hope that helps

what is this planet
Distance from Sun- 0.72 AU 9.54 AU
Planet composition- rocky mantle, iron core hydrogen, helium
Gases in atmosphere-very dense atmosphere that is 96.5% poisonous carbon dioxide and 3.5% nitrogen mostly hydrogen and helium
Number of moons -0 62
Rings- no rings

Answers

Answer:

The answer is Venus,

That planet is most definitely Venus

A scientist observes two stars in the night sky through a telescope. Star A is white in color and relatively dim. The star’s estimated temperature is very high.

Star B is red in color and extremely bright. The star’s temperature is low compared with other stars.

Help the scientist classify the two stars.

Answers

Answer:

Star A is a Neutron Star while Star B is a Red Giant

Explanation: Neutron star is a very hot star, very small in size and hence dim and is white in color. A neutron star results after a massive star goes supernova. It is primarily composed of neutrons packed in a small boundary.

 star B would be a red giant. This is because, a red giant star is red in color, is very big in size, and has a low temperature. A red giant star is a towards the end stage of a small to an average mass star.

I think

Star A is an white dwarf star

Fill in the Blank:

Word Bank:
Decreases, Increases, Daughter, Replicates, Surface Area, Translates

As a body cell grows, the ratio of _______ to volume _________. Before it grows to large, a cell will divide into two ________ cells. So that each new cell receives its own genetic instructions, the cell ________ or copies, all of its DNA.

Answers

Answer: As a body cell grows, the ratio of SURFACE AREA to volume INCREASES. Before it grows to large, a cell will divide into two DAUGHTER cells. So that each new cell receives its own genetic instructions, the cell REPLICATES or copies, all of its DNA.

Explanation:

As a body cell grows, the ratio of surface area to volume decreases. Before it grows to large, a cell will divide into two daughter cells. So that each new cell receives its own genetic instructions, the cell replicates or copies, all of its DNA.

The volume of a growing cell increases at a larger pace than the surface area. Hence the ratio of the surface area to the volume of the cell keeps decreasing. At a certain point, the signal to divide is given and this leads to the division of the cell into two daughter cells.

Just before the division, the genetic material of the cell is replicated and other important biomolecules are synthesized before the final call can be made.

More on the cell cycle can be found here: https://brainly.com/question/25282664?referrer=searchResults

Pleace and peace!!!!!!!!!!!!!!!!!

Answers

Answer:

Part a: C)

Part b: A)

Explanation:

a heterozygous (Rr) and a Homogenous (rr)

Part a: C)

There is only one out of 4 (Rr) so 1/4

A)

Answer:

C for part a

a for part b i think

Explanation:

HELP ME PLZ- I HATE SKOOL >:((

Answers

l hate school toooooooo:(
Beach mice:
Since the beach mice live in the beach (obviously) that is their ecosystem. This means that there are predators that eat the mice on the beach.

Let us assume that the mice in the beach have been isolated from the other deer mice and therefore could not reproduce with them

It comes down to survival of the fittest. The mice with the lightest fur survived because they blended in with their environment and avoided predators, so they reproduced and created more “light coat” offspring. Each generation the mice with the light coats were able to escape predation and reproduce. Therefore it is reasonable that the two mice have different genes that code for their fur colour.

The forest mice need a darker fur to blend in with their environment to avoid predation, so they’re fur stayed darker over the generations for the same reasons listed above ( vice versa of course )

PLEASE HELP 20 POINTS
Describe some of the main geologic events occurring during the Mesozoic era. This would include formation of mountains, opening of oceans, crunching continents, volcanic activity, major deposition of sediments, major structures eroded, etc:

Answers

Answer:

When the meteor hit a caused a chain reaction which caused all that and made some cloud that was toxic.

Explanation:

is albinism a dominant or recessive trait? Explain your answer.

Answers

Answer:

albinism is a recessive trait.

Explanation:

In order to have the genetic mutation, you must have two of the gene for it to be present. However, if you only have one of the genes, you are a carrier for said mutation.

hope this helped :)

Do you think that humans and humpback whales share a common evolutionary lineage?

Answers

Answer:

Yes!

Explanation:

Yes because when it comes to whales and humans we have a lot in common. They have different behaviors and languages within their own culture as humans do.They come in a lot of sizes and have different behaviors. Just like us and they are also mammals. While other sea creatures have gills.

Answer:

Scientists have used computer analysis to read evolution backward and reconstruct a large part of the genome of an 80-million-year-old mammal. This tiny shrewlike creature was the common ancestor of humans and other living mammals as diverse as horses, bats, tigers and whales.

Explanation:

What are some important functions cells perform in the human body?

Answers

Answer:

1: Movement (muscle cells) 2: Conductivity (nerve cells) 3: Metabolic absorption (kidney and intestinal cells) 4: Secretion (mucous gland cells) 5: Excretion (all cells) 6: Respiration (all cells) 7: Reproduction (all cells) MedicTests.com.

Explanation:

Which process is responsible for producing eggs and sperm?


meiosis


sexual reproduction


asexual reproduction


mitosis

Answers

Answer:

meiosis

Explanation:

The bending of plants toward the light sources serves which purpose in terms of plant’s metabolism?

Answers

Answer:

B

Explanation:

TOOMK THE  Q8IX

The correct answer is B

How is the process of fertilization in animals like the process that takes place in plants?


Spores can become sperm that will fertilize the egg.


Self-fertilization is possible if no partner is available.


A sperm cell and an egg cell combine to form an embryo.


Sperm is encased in a grain of pollen to travel to an egg.

Answers

Answer:

Hope it helps :))

Explanation:

And i also hope you get it right ;))

The answer is C! A sperm cell an egg cell combine to form a embryo!

Smooth muscle _____.

is only found in the heart
appears to have stripes
controls involuntary actions
is also called skeletal muscle

Answers

Answer:

i think it is c

Explanation:

Answer:

its C

Explanation:

salivary glands release a liquid called saliva, which helps to break food down.

1. mechanical
2. chemical

Answers

Answer:

2. chemical

Explanation:

it would be 2, chemical:)

Which of these factors is involved in earthquake formation?

Answers

Answer:

Earthquakes are usually caused when rock underground suddenly breaks along a fault. This sudden release of energy causes the seismic waves that make the ground shake. When two blocks of rock or two plates are rubbing against each other, they stick a little. They don't just slide smoothly; the rocks catch on each other.

Explanation:

a earthquake is formed when, two titanic plates rub together and then get caught on each other which creates a earthquake

In the image below, which objects would have a greater gravitational force between them, Objects A and B, or Objects B and C? Give one supporting detail for your answer.

Answers

B and c

Its because heavier objects have a higher gravitational force

Answer:

Objects A and B

Explanation:

The Bigger the Object the more gravitational force, there is other thing that effect gravitational force but in this one it is size.

Can someone plz answer the two questions below plz and thank you!!!

Answers

Answer:

What questions

Explanation:

It isn’t any questions here?

What is the molecule that is responsible? for albinism and colorblindness

Answers

The answer is melanin.

Mark me brainliest!

Answer:

melanin i believe

Explanation:

Are there any more endangered animals who are experiencing a bottleneck effect. I read an article and I had this question in mind.

Answers

Answer:

I think Mountain Gorrillas?

I could be wrong, I saw it on a website

:D

Elements and compounds are pure substances that cannot be broken down physically into a simpler substance. A physical change doesn’t break the bonds between atoms of a substance or form new ones. Compounds can be broken down by a chemical change. A chemical change breaks chemical bonds and/or forms new ones between atoms of a substance. What simple substance would a compound break into? The basic elements that make it up! For example, if you passed a very strong electric current through water you’d break the chemical bonds in water and be left with oxygen and hydrogen. Which of the following is an example of a chemical change?

A
separating water into different glasses

B
breaking frozen ice cubes with a hammer

C
running an electric current through water

D
boiling water to evaporate it on a stove

Answers

Answer:

c

Explanation:

covalent bond and hydrogen bond

Answer:

C because

Explanation:

covalent bond and hydrogen bond Are both present Here so that will be your answer

HURRY I WILL GIVE BRAINLEST JUST PLS HURRY IM ON MY FINALS EXAM!!!!!!

Which scientist most inspired Darwin to pursue his studies of evolution?

A. Linnaeus, who first proposed that humans and primates are similar
B. Malthus, who thought that populations could outgrow their food sources
C. Linnaeus, who thought that populations could outgrow their food sources
D. Malthus, who first proposed that humans and primates are similar

Answers

Answer:

B. Malthus, who thought that populations could outgrow their food sources

Explanation:

Thomas Malthussssssss

HELP URGENT!! My bunny just had babies they are not moving what should I do??????

Answers

CHECK IF THWY ARE BREATHING
the little rabbits are visibly injured (bleeding or nonfunctioning limbs, for example) or obviously suffering, it's best not to touch or move them

Which is an example of trace fossils?
A. an insect getting stuck in a tree sap that hardened
B. sediment hardening around a trilobite
C. footprints from a dinosaur in mud that hardened
D. minerals replacing tissue in wood and hardening

Answers

ANSWER: i think it’s D

i’m not sure i hope i helped
i’m so sorry if i’m wrong

Answer:

A. An insect getting stuck in tree sap that hardened

Explanation:

The answer is A because that is one of the ways to collect DNA samples for animals. The other way is digging for fossils.

30 POINTS!! PLEASE HELP ME ❤️❤️❤️❤️

Answers

Answer:

The king tide, also called a perigean spring tide, is caused by the sun and the moon aligning at just the right time such that the moon is closest to the Earth and the Earth is closest to the sun.

Explanation:

Two types of ocean movement, surface currents and deep water currents, result from which of these? *
(Note: Two of these are correct. You can only choose one.)

A. Temperature variations at different depths
B. The gravitational force from the moon
C. Large cargo ships pushing the water
D. Wind energy

Answers

Answer:

c i am pretty sure hope it helps

the answer is C: Large cargo ships pushing the water

Ocean water is-
A. mixture
B. compound
C. element
D. fresh water

Answers

Ocean water is fresh water :))
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Based on dialogue in paragraph 4,5,6 which inference can the reader make about flemings character "Civil society" refers to __________. A. gatherings of very polite people B. government branches and agenciesC. organizations and groups that are not part of the government D. none of these are the definition of "civil society" In the reaction __S+3O22SO3, what coefficient should be placed in front of the S to balance the reaction?Question 1 options:123 True or false Equal forces acting on one object in opposite directions are called balanced forces SOMEONE HELP ASAP PLS!!Point K lies at (-3,4). Point K is reflected over the y-axis and then translated 7 units down to produce K'. Which rule could have been used to produce K from K? getting bored.Is there anyone??? how can the amino acid sequence determine the characteristics of an organism? Which of the following statements demonstrate why it is important to practice maintaining one's attention during theperformance phase of selt-regulation?A. Being easily distracted by events unrelated to one's goal can interfere with goalaccomplishment.Level of attention is important because it helps to increase motivation when working toward agoal.B.C. Level of attention increases support from self and others when working toward a goal.D. Amount of focus during goal performance influences self-regulation forethought. what does the fox say [tex]x^{2}[/tex] A ball is thrown off a cliff at a speed of 10 m/s in a horizontally direction. The ball reaches the ground 1.5 seconds. If the ball is launched a second time at the same speed from a second higher cliff, which of the following is true?A. The ball takes a longer time and lands further away from the foot of the cliff.B. The ball takes longer to hit the ground, but lands at the same distance from the foot of the cliff.C. The ball takes the same time lands at the same distance from the foot of the cliff.D. The ball falls further away from the foot of the cliff, but takes the same time. Why were the poor in Germany discontented with the Weimar Government? i need some help with this Payb- Based on the information below, calculate the payback period. (4 points) Show and label your work. Investment $700,000 Required rate of return 12% Depreciation method Straight Line Useful life 5 years Residual value $20,000 Estimated net cash inflows per year for five years $150,000 2. Based on your answer in part 1, would you accept or reject this project? Why? HELP ASAP!!geometry After breakfast both patients are off the unit getting tests done. You discover that Mr. Needle forgot to give himself his breakfast injection of Apidra and Mr. Pumper forgot to reconnect his pump after showering. You have to leave the unit and deal with both situations. HELP PLEASE!!!! Picture below!! Will give brainlist!!! answers plz???????!!!!!!!! 5x+2(x+6)A.7x+6B.7x^2+12C.7x+12D.7x(x+6) Question 5 (1 point)Supplementary angles alwaysbequivalent.add up to 180 degrees.add up to 360 degrees.add up to 90 degrees.Od Which polynomial function could be represented by the graph below?On a coordinate plane, a parabola opens up. It goes through (negative 2, 0), has a vertex at (negative 0.5, negative 4.5), and goes through (1, 0).f(x) = x2 + x 2f(x) = 2x2 + 2x 4f(x) = x2 x 2f(x) = 2x2 2x 4