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Ivenika [448]
3 years ago
15

In what ways do physical environments vary

Biology
1 answer:
Verizon [17]3 years ago
4 0
Temperature, amount of water, co2 concentration, amount of oxygen, acidity of soil
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Which of these methods that aids in the movement of ions or molecules across a cell membrane requires the use of energy which is
olya-2409 [2.1K]

Answer:

D. Active transport.

Explanation:

Active transport is the method that uses the ATP's energy to move ions and molecules from one side to the other of the membrane. The elements move from a place of lower concentration to one of a higher concentration. They move against their concentration gradient, which is why they need the energy to do it. There are two types of active transport, primary and secondary.

The primary active transport is ion pumps that hydrolyze ATP using one of the phosphates of the ATP to change the pump's shape and move the elements against their concentration gradient. It uses the ATP's energy directly.

The secondary active transport does not use ATP directly. It uses the electrochemical gradient that the primary transport had created when hydrolyzing ATP to transport the ions and molecules.

6 0
2 years ago
Why does the the right testicle hang lower than the left?? PLease help i will be thank (Sorry english second language if your wo
Ber [7]

it is entirely normal for one testicle to be bigger than the other. Many people find that the right testicle is slightly larger and the left hangs lower. A difference in size is usually nothing to worry about, though it can occasionally indicate a problem.

This is perfectly normal and nothing to worry about. Either side may be slightly larger or hang lower. But be sure to tell a parent (who will let your doctor know) if you have any pain, swelling, or lumps in your testicles.

When a vein in a testicle becomes enlarged, it's called a varicocele. Varicoceles affect up to 15 percent of males. Like varicose veins in your legs, varicoceles may appear bulgy under the skin of your scrotum. They tend to form in the left testicle because the vein on the left side hangs lower.

7 0
3 years ago
Which of the following blood vessels would have the lowest blood pressure?
natta225 [31]
<span>D. one that is large in diameter and has low blood volume</span>
7 0
2 years ago
Read 2 more answers
Which event occurs after erosion of Earth’s surface?
Arisa [49]
Deposichen will drop
4 0
3 years ago
Read 2 more answers
Calculate the volume of the cone.
ale4655 [162]

Answer:

4778.4 cm³

Explanation:

The formulae of finding the volume of a cone =  1/3 * π * r² * h

(r = radius; h = height)

Therefore replacing the variable with values gives = 1/3 * π * 13² * 27

= 4,778.3624261100755157016805859681‬

Volume to the nearest tenth = 4778.4 cm³

3 0
3 years ago
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