Darwin specifically studied the
on the Galapogas islands.
A. Finches
B. Flowers
C. Turtles.
D. Insects

Answer:

genes or DNA, Or ancestory

Explanation:

Answer:

1/30

................

Explanation:

The process of sexual reproduction introduces variation into the species because the alleles that the mother and the father carry are mixed together in the offspring. ... A mate must be found, the egg must be fertilised by sperm, and then the offspring develop.

Answer:

because it increases the gene pool

Explanation:

So sexual reproduction requires two organisms, a male and a female, and their offspring has a combination of both of the parents, this varies the gene pool. Then the offspring creates more offspring, further varying the gene pool.

hope this helps:)

Five air masses affect the United States during the course of a typical year: continental polar, continental arctic, continental tropical, maritime polar, and maritime tropical. Continental air masses are characterized by dry air near the surface while maritime air masses are moist.

Answer:

[tex]\boxed {\boxed {\sf A. \ Channel/Transport \ proteins}}[/tex]

Explanation:

The phospholipid bilayer is also known as the cell membrane. It covers cells and regulates the transport of substances. Certain ones can pass and others cannot, depending on certain factors like size and polarity.

Smaller substances tend to diffuse or move across the membrane quite easily. However, larger molecules have a much harder time. Many depend on special proteins embedded in the membrane. These are called transport proteins and they form a channel so large molecules can still move in or out of the cell.

So, salt, water, and fats do not contribute to the movement of larger molecules, but channel or transport proteins do and choice A is correct.

Option D.

The time required then for the complete process of mitotic cell division would lie within the following limits: Prophase, 30 to 60 minutes; metaphase, 2 to 10 minutes; anaphase 2 to 3 minutes; telophase 3 to 12 minutes and the reconstruction period from 30 t'o 120 minutes: total 70 to 180 minutes.

Meiotic prophase I takes more time than other processes of mitosis or meiosis.

Meiosis is a type of reductional division as the chromosome number reduces to half in this type of division. It results in the formation of haploid cells. The process of meiosis takes place in germ cells and gives rise to gametes for sexual reproduction. Each process of meiosis produces four haploid cells.

Meiosis is categorized as meiosis I and meiosis II. Meiosis I gives rise to haploid cells. The prophase I of meiosis I have 5 further stages. These are leptotene, zygotene, pachytene, diplotene and diakinesis.

Meiosis II is comparatively simple and is very much like Mitotic division, except the cells undergoing division are the haploid cells produced by meiosis I. Hence, Meiotic prophase II also takes less time than Meiotic prophase I.

Therefore, the process that takes the most amount of time is the Meiotic prophase I.

Read more about meiosis, here

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Rigel

is the answer of your question

hope it is helpful to you

There are two types of rainforests, tropical and temperate. Tropical rainforests are found closer to the equator where it is warm. Temperate rainforests are found near the cooler coastal areas further north or south of the equator. The tropical rainforest is a hot, moist biome where it rains all year long.

known as D

hope this helps <3

Answer:

B. Cell membrane

Explanation:

The factors associated with removing plants and removing snow increase the heat absorbed by a land surface.

The expression heat land surface makes reference to the radiation absorbed by the Earth during the day.

This solar radiation increases the amount of thermal energy present in the ground and its temperature.

In conclusion, the factors associated with removing plants and removing snow increase the heat absorbed by a land surface.

Learn more about heat land surface here:

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Answer:

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Answer:

The reason the immune system makes memory cells is to help the body recognize a sickness they have experienced before and react to it.

Explanation:

Answer: B

Explanation: Because Light and thermal are two different things of heat and if one of the cores of heat gets any cooler than it is than it may burn out and there wwill no longer be heat so the food brin come in at the middle (Core) of the heat and just like a microwave it had different heats but its core of the heat stays the excact same

Answer:

Its B(and c if it you could answer 2 )

Explanation:

a. Sure your using plastic less but still you could have avoided the use of cups in all.

b. (we already know this is the answer but let me explain) If you use a car of  course it would pollute the air so if you use a bike you would both be exercising and polluting the air less.

c. It would cocerve energy so the main reason i asked if it was multi answer.

d.what would that do, your still using water?

e. same answer as last explination.

Answer:

1. Esophagus

2. Small Intestine

Answer: eating foods that will give you the proper nutrition

exercising

getting plenty of rest

Explanation:

Answer:

b

Explanation:

i took the test

Answer:

if the shorter plants are the recessive it would be tt x tt of they are the dominant, it would be TT x Tt.

Answer:

D

Explanation:

Alveoli are tiny air sacs in your lungs that take up the oxygen you breathe in and keep your body going.

Answer:

I believe the awnser is; The reaction force is the force of the ball away from the racket

Answer:

(2) the same kingdom, but different species

Explanation:

I believe that they are from the same kingdom (Animalia) but are different species, which causes them to not be able to breed with one another.

Answer: c i think

Explanation:

Answer:

ok!

Explanation:

Organic debris- PP

Aquatic plants- PP

Aquatic insects- primary consumer

Crayfish- primary consumer

Larger fish- secondary consumer

Small fish- secondary consumer

Osprey- tertiary consumer

Bald eagle- seconday consumer

Seagull- secondary consumer

Rodent- primary consumer

Seal- tertiary consumer

Nothern Harriet- secondary consumer

Plant seeds and roots- PP

hope this helps do telll me if any of them r wrong! :D