Hydrochloric acid contributes to protein digestion by supplying H+ which activates pepsinogen, the precursor to pepsin. Pepsinogen is secreted by chief cells in the gastric glands of the body and antrum of the stomach.

Explanation:

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8 0

2 years ago

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What percent must a species decline by to be placed on the endangered species list an animal must decline in ten years by?

Naddika [18.5K]

Answer:

20%

Explanation:

A species is placed on the endangered species list when its overall population sees a reduction of 20% over a 10 year period or a 3 generation period.

(This is correct, because I got it right on my quiz)

3 0

3 years ago

Four different phylogenetic trees of a group of salamanders have been proposed. Trees A and B each require 12 homoplasies, but t

prohojiy [21]

Answer:

The answer is letter D.

Explanation:

Tree D only . It is the only tree that is the most accurate.

4 0

4 years ago