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Verdich [7]
3 years ago
12

Which Scientists’ observations eventually led to the theory of continental drift

Biology
1 answer:
anzhelika [568]3 years ago
8 0
Alfred weagener was the scientist who first proposed the continental drift
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Katyanochek1 [597]

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Explanation:

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3 years ago
In an energy pyramid, which level has the most available energy?
MrRissso [65]

Answer:

The correct answer is -A. producer level.

Explanation:

the first trophic level is the level of photosynthetic organisms they produce their food and energy on their own from the ultimate source of energy, the Sun. This is why they are called producers.

Producers have the most energy in any ecological ecosystem as all other organisms get food from these directly or indirectly. Only 10 percent of total energy is transferred from one trophic level from producers to the next tropic level through consumers of different trophic levels.

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3 years ago
Ok the role of the cell membrane in regulating how nutrients are gained and waste products lost.​
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The cell membranes controls what goes in and out by having protein channels that perform their role accordingly sometimes like funnels and like a pump in different cases.

When a channel open in the plasma membrane it allows molecule to pass through, in this case there is no requirement for energy so it is a passive transport.

Gases and food particles broke down in water must be assimilated and waste or harmful substance and molecules must be remove. For most cells, this type of selective transport of all materials all through the cell must happen through the plasma membrane.

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Desalination is an important process when it comes to seawater. What are some positive effects of desalination?
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