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ludmilkaskok [199]
3 years ago
8

The main source of organic matter in soil

Biology
1 answer:
iragen [17]3 years ago
3 0

plants (living and dead) is the main source
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If i have stress fracture of my radius bone what part of my body i have broken
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Forearm.
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If you are not getting adequate calcium in your diet, calcitonin will be secreted, which stimulates osteoclasts to resorb bone a
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The statement above is false. The blood levels of calcium is regulated by parathyroid hormone.When one is not getting adequate calcium in one's diet and the blood level of calcium is low, the parathyroid hormone will be released. The parathyroid hormone can increase the blood calcium in several ways:
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Beginning with carbon fixation, arrange the steps of the Calvin cycle in the correct order.
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1.formation of glucose, which leaves the chloroplast
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3 years ago
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Which of the following is on the anterior side of the hand and wrist?
nirvana33 [79]

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it's d. Flexor carpi radialis

Explanation:

The other three are on the Posterior side. Extensor carpi ulnas should also be spelled ( Extensor carpi ulnaRIs )

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A flash flood carried a raft of Amazon ants away from their original population. There is enough distance between the two groups
vitfil [10]

Answer:

geographical isolation

Explanation:

Reproductive isolation is a process of evolution that ensures that members of different species are incapable of mating and when they do, such mating do not result into any offspring or leads to the production of invalid offspring.

There are two mechanisms of reproductive isolation:

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<em>Geographical isolation involves the existence of geographical barriers between two populations such that there cannot be mating between the two. The two populations eventually evolve to become different species.</em>

<em />

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3 years ago
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