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otez555 [7]
3 years ago
10

Which plant-cell organelle supports and maintains the cell's shape and protects the cell from damage?

Biology
1 answer:
WITCHER [35]3 years ago
4 0
The answer is Cell Wall. :)
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Endosymbiont theory explains some of the differences and similarities between prokaryotes and eukaryotes. Categorize the followi
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Endosymbiont theory was proposed by Lynn Margulis in 1967 which suggested the origin of Chloroplast and mitochondria in eukaryotic cells.

The theory suggested that chloroplast and mitochondria organelle originated by engulfing the cyanobacteria and proteobacteria by other prokaryotic bacteria.

This shows that Prokaryotes exhibit the following characters:

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Eukaryotes exhibit:

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3 years ago
Explain how cancer relates to the cell cycle and give an example.
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Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor

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Why do you get hungry?
suter [353]

Answer:You may feel hungry frequently if your diet lacks protein, fiber, or fat, all of which promote fullness and reduce appetite. Extreme hunger is also a sign of inadequate sleep and chronic stress. Additionally, certain medications and illnesses are known to cause frequent hunger.

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"Hunger hormones" (ghrelin) in your blood and an empty stomach signal the brain when you're hungry. Nerves in the stomach send signals to the brain that you're full, but these signals can take up to 20 minutes to communicate -- and by that time, you may have already eaten too much.

8 0
2 years ago
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harkovskaia [24]

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c 1

b2

a3

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