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blsea [12.9K]
3 years ago
13

What is one main difference between the cell wall and the cell membrane?

Biology
2 answers:
Thepotemich [5.8K]3 years ago
5 0

c. The cell wall is more rigid than the cell membrane.

Welcome.

Pani-rosa [81]3 years ago
4 0
C. the cell wall needs to be stronger, as it is built for support
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Answer:

She was able to represent something small in a larger way.

Explanation:

Obviously if the bacteria need to be viewed with a microscope, they are extremely small. Darla likely does not have access to a microscope at her house, so using the macaroni and string, she made her own way of "seeing" the bacteria, but in a larger way. B is false because bacteria are small, not large. C is false macaroni do not need to be viewed with a microscope; in fact, this will probably allow you to not see them very well at all. D is false because macaroni wouldn't really show any patterns.

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3 years ago
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D.

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3 years ago
During MEIOSIS, an event called crossing over occurs. Explain what happens during this event.​
RoseWind [281]

Answer:

During meiosis, an event known as chromosomal crossing over sometimes occurs as a part of recombination. In this process, a region of one chromosome is exchanged for a region of another chromosome, thereby producing unique chromosomal combinations that further divide into haploid daughter cells.

3 0
2 years ago
When neurons "fire," the first thing that happens is that sodium ions enter the cell. this does not require an input of energy.
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One can infer that membrane transport proteins are required in order for neurons to fire.

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Transport proteins are proteins that transport substances across biological membranes. Transport proteins are found within the membrane itself, where they form a channel, or a carrying mechanism, to allow their substrate to pass from one side to the other.

-Transport proteins transport materials such as; ions such as sodium and potassium; sugars such as glucose; proteins and messenger molecules; and many more. In neurons, they  play a fundamental role in the functioning of nerve cells. These transporters, a third class of membrane transport proteins, move a wide variety of ions and molecules across cell membranes.

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