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Shkiper50 [21]
3 years ago
14

Why are upwellings more productive than downwellings?

Biology
1 answer:
Marianna [84]3 years ago
6 0

Answer:

colder, rich in nutrients

Explanation:

fertilizes surface waters meaning they have high biological productivity

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differences between the structure of the wall of the stomach and the structure of the wall of the ileum​
JulijaS [17]

Answer:

Wall of stomach : it has three layers of muscle instead of two. Under these muscle layers is the adventitia, layers of connective tissue continuous with the omenta. The epithelium of the stomach forms deep pits, called fundic or oxyntic glands.

wall of ileum : The wall itself is made up of folds, each of which has many tiny finger-like projections known as villi on its surface. The ileum has an extremely large surface area both for the adsorption of enzyme molecules and for the absorption of products of digestion.

5 0
2 years ago
Active transport requires _E_ __ __ __ __ __ to move molecules across
denpristay [2]

Answer:

Cellular Energy

Explanation:

Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration. Cellular energy is required to acheive this movement.

Hope this helps you!

5 0
2 years ago
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Rina8888 [55]
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3 0
3 years ago
Are antibiotics always the answer for curing illnesses?
oee [108]

Answer:No, viruses and some illnesses cannot be cured with antibiotics

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Cells in the human eye send nerve impulses to the brain that cause the pupil to constrict. This is an example of a reaction to w
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This is a reaction to light.
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