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Andre45 [30]
3 years ago
15

Where do cells like brain cells and muscle cells get their energy from? Where does it come from?

Biology
2 answers:
fredd [130]3 years ago
7 0
The Mitochondria/Mitochondrion.
statuscvo [17]3 years ago
6 0
The food that we eat burns in the cell's mitochondria . It gets from there
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What occurs when too much of a population relys on something.
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Answer:

What occurs when too much of a population rely on something?

This leads to overcrowding after which competition sets in and it would diminish the resources and death of the unfit organism while the fittest survives.

Explanation:

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2 years ago
Which of these methods that aids in the movement of ions or molecules across a cell membrane requires the use of energy which is
olya-2409 [2.1K]

Answer:

D. Active transport.

Explanation:

Active transport is the method that uses the ATP's energy to move ions and molecules from one side to the other of the membrane. The elements move from a place of lower concentration to one of a higher concentration. They move against their concentration gradient, which is why they need the energy to do it. There are two types of active transport, primary and secondary.

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3 years ago
Describe what happens to organisms who optimum temperature zone is between 21°C and 32°C when the temperature rises from 21°C to
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Answer and Explanation:

The hypothalamus contains the central thermoreceptors which detect blood temperature as well as the thermoregulatory centre. The skin of organism contains peripheral thermoreceptors which detect the environmental temperature.

Increase in body temperature above the normal initiates the appropriate corrective mechanisms that include sweating, lowering of hair for mammals, vasodilation of superficial blood vessels and decrease in metabolic rates. This has an overall effect of causing the body temperature to fall and the normal body temperature is restored.

Sweat is secreted by sweat glands that evaporates from the surface of the body cooling the body as it absorbs latent heat of vaporization. Superficial blood vessels vasodilate so that more blood flows near the surface to encourage heat loss. Hair is lowered so that it lies against the body surface. This encourages heat loss from the body to the external environment.

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3 years ago
Can you please check my answer? I'm not sure that I did this right. I had to use google docs to make it.
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it looks right and good just make sure you put your name on it and turn it in and you be good!

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3 years ago
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