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Sergio [31]
3 years ago
6

The fight-or-flight reaction occurs during which stage of gas?

Biology
1 answer:
DedPeter [7]3 years ago
6 0
In the alarm reaction stage

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Describe ways in which a healthy artery differs from an artery affected by coronary heart disease
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A healthy artery is wider and has no blockages. The lumen (which is the hole in the centre of the artery), is open and clear. This means there is more blood flow. An artery of a person suffering from coronary heart disease is often blocked, usually by a fatty deposit. This means the blood does not flow as well. (See diagram, in which I would draw two arteries, one with a blockage of fatty deposit, one clear and healthy).

hope this helped you

please mark as the brainliest (ㆁωㆁ)

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4 years ago
The process of mitosis is the same in plant and animal cells until the division of the cytoplasm. At this stage, plant cells dev
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​Pascal has a mental age of 15 and a chronological age of 20. Using the IQ formula from the text, Pascal’s IQ would be described
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The mutation resulting in sickle cell disease changes one base pair of dna so that a codon now codes for a different amino acid,
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<span>Missense mutation
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Which came first: land plants or dinosaurs?
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Bacteria, but out of those three then it would be land, because animals (dinosaurs) Could not live without food (plants) and plants can't grow without land.

Explanation:

IF THIS HELPS PLEASE MARK ME AS BRAINLIEST

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