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diamong [38]
2 years ago
10

Which metal is found in alluvial soil?​

Biology
1 answer:
disa [49]2 years ago
8 0
The alluvial soils are somewhat enriched in Mn, Zn, Co, and Cu, which is related to the biological accumulation of these elements entering the trophic chains..
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These are models of a plant cell and an animal cell. How can you use the models to help you describe the cell parts that are dif
OLga [1]

Answer:

Chloroplasts are what give plants their green color. The second major difference between plant and animal cells is the cell wall. While both plant and animal cells have a cell membrane, on plants have a cell wall.

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Which partly explains why the domestication of animals tended to increase the human food supply?
Alenkinab [10]

Answer:

A

Explanation:

Before domestication of animals, these animals were wild and early humans used to hunt for food. The hunting process  was not always successful and took a lot of energy from the body. Domestication of these animals made food available and other conveniences. An example is cows that emanated from the domestication of wild aurochs. They provided the milk and meat for humans and also labored in the farm in the cultivation of domesticated plants.

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3 years ago
To track what happens in "Things That Matter,” first Lea should
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Which explains how the greenhouse effect and greenhouse gases can cause problems with earth’s energy budget?   A. The more green
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6 0
3 years ago
The autorhythmicity of cardiac pacemaker cells is made possible by the reduced permeability of _______. The autorhythmicity of c
vichka [17]

Answer:

<h2>potassium</h2>

Explanation:

The heartbeats of the heart are controlled by the sinoatrial node also known as the pacemaker of the heart. The impulse is generated in the conducting cells of the pacemaker as a result of the movement of sodium, potassium and calcium ions.

The sodium channels allow the movement of sodium into the cell which depolarizes the membrane from -60mv to -40 mv. At this point, the calcium gated channels open which allow the entry of the calcium in the cell which depolarizes the cell up to +5mv.

At this point, the potassium channels open which allows the potassium ions to move out of the cell. This repolarizes the cell and hence the cycle again begins.  Reducing the permeability of the potassium ions help generate the autorhythmicity due to repolarization and thus is the correct answer.

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3 years ago
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