Evesa

Biology

1 answer:

Artist 52 [7]3 years ago

8 0

Answer:

Active uptake (which I think you mean active transport) is important when the concentration gradient is against that of a certain substance, so it doesn't cross the membrane through diffusion or passive transport. It is sometimes necessary if a substance needs to move across a membrane but can't do so due to electrical charge or that there is a substance on the other side of the membrane preventing diffusion.

Explanation:

You might be interested in

Ultraviolet rays from the sun are dangerous because they can damage skin. Why do ultraviolet rays cause damage?

Sonja [21]

Answer:

UV rays are highly injurious to living organisms since DNA and proteins of living organisms preferentially absorb U.V rays and it's high energy breaks chemical bonds. UV rays damage DNA and mutation may occur. It causes ageing of the skin, damage to skin cells and various types of skin cancers.

7 0

2 years ago

Read 2 more answers

Jocelyn wants to get the lead part in the school play, but to practice her lines she has reduced her exercise schedule and delay

Karo-lina-s [1.5K]

The correct answer for the given situation above would be option D. The condition that Jocelyn might experience during her audition would be an anxiety attack. Anxiety attack or also known as panic attack is an abrupt onset of intense discomfort or fear which lasts for minutes. This may include shortness of breath, increased heart or pulse rate, sweating, and trembling.

3 0

3 years ago

Read 2 more answers

The chimpanzee and the bonobo population were separated by the congo river; therefore the groups could not reproduce with each o

Eddi Din [679]

The answer to the blank is GEOGRAPHICAL

7 0

3 years ago

What are two reasons why terrestrial plants formed closer to the sun after the supernova event that initiated the formation of t

jasenka [17]

Answer:

- They are made of denser objects, which can condense at relatively high temperatures;