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andriy [413]
3 years ago
10

PLEASE HELP!!!!! PLEASE HELP!!!

Biology
2 answers:
Elena-2011 [213]3 years ago
4 0

Answer:

its "A" water flowing over a tall cliff

Explanation:

Ahat [919]3 years ago
4 0
The answer to the question is "A"
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What are food enzymes?
Llana [10]

there aren't many enzymes in food, mainly in fruits, the enzymes in friuts are very similar to ptylin found in the mouth that help break down sugar, they do not need to be ingested before they activate, a proof of this is the apple test, buy an apple, take a bite and leave it without covering it for a few minutes, you'll notice that the bitten part starts turning yellowish brown because the enzymes in the apple are already breaking it down.  

In summary, they do not need to be ingested before activation, and the major characteristic of an enzyme is that they do not change after they react with (breakdown) food, so they are in the same form before and after they finish breaking down the food.

8 0
4 years ago
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guapka [62]

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The given situation is an example of <u>density dependent factor</u>.

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The density dependent factors are the factors that regulate the growth of a population. It is defined as the factors whose effects on the growth or size of a given population vary with the population's density. The various types of density dependent limiting factors are diseases, migration, safe drinking water, food availability, migration etc.

<u>Therefore, the given situation is an example of density dependent factor.</u>

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3 years ago
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How has gene duplication played a critical role in evolution? see concept 21.5 (page)
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Explanation: Without gene duplication, mutation of genes would not exist. This would prevent organisms from adapting to their environment, making survival much more difficult if not impossible.

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Hundreds of mutations have been identified in ryr1 that contribute to multiple muscular diseases. assume that a new mutation was
Brilliant_brown [7]
The RYR1 gene is responsible for producing the protein ryanodine receptor 1. This protein transport calcium ions to the cells for muscle contraction. When this receptor remains open for a long time, you would expect an excess of calcium ions which would result to muscle rigidity. The excess calcium ions would also increase body temperature and produce excess acid.
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