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Veronika [31]
2 years ago
13

Why does the heart automatically adjust the flow of blood to match activity levels?

Biology
2 answers:
Sliva [168]2 years ago
4 0

Answer:

C

Explanation:

it builds up higher level of oxygen in the bloof

Lilit [14]2 years ago
4 0
The answer to your question is D
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Question 13
sasho [114]

Answer:

Condensation is a process in which water vapors changed into liquid state.

Explanation:

Condensation is a process in which water that is present in the vapors form changed into liquid state. Condensation greatly affect Earth systems because this process is responsible for the precipitation on the earth. Condensation occurs in the atmosphere when warm air rises in the atmosphere, cools and unable to hold water vapor. As a result, water vapors condenses to form cloud droplets that falls in the form of rainfall.

8 0
3 years ago
Does a humming bird migrate
leva [86]

Yes. They do it to escape the winter. Hope it helps.

6 0
3 years ago
Read 2 more answers
What do frozen water drops become when they are carried back up into the sky by the wind and more layers of ice form on them?
Morgarella [4.7K]
The answer would be C. Hail.
3 0
3 years ago
Which sequence represents the correct order of levels of organization found in a complex organism?
icang [17]

<u>Answer:</u>

C is the answer.

<u></u>

<u>Explanation:</u>

Organelles (the smallest in this situation) are what you can find inside a cell (example: nucleus, mitochondria, etc..).

Cells are what make up tissues (such as muscles).

Tissues make up organs (such as the heart) and organs make up organ systems (such as the circulatory system).

5 0
3 years ago
A new kind of tulip is produced that develops only purple or pink flowers. Assume that flower color is controlled by a single-ge
g100num [7]

Answer:

Explanation:

the purple allele (C) is dominant to the pink allele (c).

The frequency of C represents p while that of c represent q. Using the formula p+q= 1

The proportion of pink flower is 153/1000 = 0.153. This is also the frequency of the genotype cc (q^2).

Thud to find q which is the frequency of the c allele,

q = √0.153

q = 0.3912

From the formula p +q = 1 we can find p p = 1 - 0.3912

p which is the frequency of the C allele

p = 0.6088.

B. the proportion of all purple flowering plants that are heterozygotes and homozygotes is 847 / 1000 = 0.847

5 0
3 years ago
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