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QveST [7]
3 years ago
9

A selectively permeable membrane prohibits the movement of some substances across the membrane.

Biology
1 answer:
pshichka [43]3 years ago
4 0

Answer:

false

Explanation:

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List the four main types of carbon-based molecules found in living things.
serg [7]

Answer:

  • Proteins
  • Lipids
  • Carbohydrates
  • Nucleic Acids

Explanation:

they are the densest things to break down, and store in the body since they are very much carbon based.

3 0
2 years ago
Elderly people fear dependency because a. They lose their independence. C. It necessitates new role behaviors. B. Their status i
Lera25 [3.4K]

Answer:

the answer is D

Explanation:

4 0
2 years ago
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Why is the velocity (linear speed, i.e. distance traveled per unit time) slow in an individual capillary, but the total flow (vo
larisa [96]

Answer:

There is no short answer.

Explanation:

The blood flow speed in the aorta is about 30cm/s whereas in the capilaries it is around 1-1,5 mm/s. The reason why this is happening is because the capilaries are much smaller and thinner than the aorta and they are not as durable to those conditions. The total blood flow is the same but the rate is not so that the blood pressure can be kept in balance throughout the whole body.

I hope this answer helps.

8 0
3 years ago
Jeffrey brings a book from an air-conditioned apartment to a balcony or a hot summer day. How will the cool book interact with t
Nata [24]

Answer:

Heat from the air will move to the book

Explanation:

B

3 0
4 years ago
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In molecular compounds molecules bonded tk gether by____
Sati [7]

Answer:

a) Covalent bond

Explanation:

Atoms of different element are held together in molecules by covalent bonds in which atoms share their valence electrons with each other.

3 0
3 years ago
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