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Aleks04 [339]
3 years ago
15

What did scientists observe using the earliest microscopes.

Biology
1 answer:
kodGreya [7K]3 years ago
3 0

Answer:

Tiny organisms. Hope this helps!

Explanation:

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Imagine you are cutting a bagel (one of the most common household injuries) and you get a cut. The cut heals. How do the new cel
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The new cells are the same as the previous ones, since they are the result of the mitosis process.

Explanation:

When we cut our skin, our brain sends information to millions of cells to take action and prevent this cut from putting us in danger. At that moment, the blood cells begin their work, supplying enough oxygen to stop possible bleeding and start the healing process. Then another group of cells swap out possible bacteria that may be trying to get into the wound. Last but not least, skin cells enter cell division and undergo mitosis, to generate new cells and create a new skin layer.

New cells are the same as old cells, as they are the result of mitosis. Mitosis is the process of cell division where one cell gives rise to two cells exactly the same as it.

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God PLEASE help. What does surface area-to-volume ratio, diffusion rate, and time for substances have anything to do with reachi
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Answer:

Surface area to volume ratio, in simple means the size of surface area to the volume of substance that can pass through it at a particular time.

Amoeba and some bacterias are flat and have large surface area to volume ratio. So the diffusion rate is very high due to large surface area.

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Explanation:

As the ratio gets smaller, it takes longer for items to diffuse.

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When the cell increases in size, the volume increases faster than the surface area, because volume is cubed where surface area is squared.

When there is more volume and less surface area, diffusion takes longer and is less effective. This is because there is a greater area that needs to receive the substance being diffused, but less area for that substance to actually enter the cell.

this is actually why cells divide. When they become too large and it takes too long for them to transport materials across the cell, they lose efficiency and divide in half to raise the surface area to volume ratio.

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the cytoplasm is negative and extracellular fluid is positive because of the unequal distribuation of anions and cations on both sides.

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