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vitfil [10]
3 years ago
11

How many holes are in our throat?

Biology
2 answers:
Anit [1.1K]3 years ago
5 0
It should be two, i think. 
ehidna [41]3 years ago
4 0
There are 2 because the food our food goes through and the air pipe 
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Two groups of tomatoes were grown under laboratory conditions, one with humus added to the soil (Group 1) and the other a contro
charle [14.2K]

Answer:

the humus contains the minerals necessary for chlorophyll synthesis

Explanation:

<em>The yellowness of leaves in plants can be attributed to inadequate chlorophyll in the plant</em>. The chlorophyll is responsible for the greenness appearance of the leaves of plants and when it is present in inadequate quantity, the leaves appear yellowish in color.

<u>Some of the minerals necessary for the formation of chlorophyll include magnesium, nitrogen, and iron</u>. It thus means that the humus supplied to the soil of group 1 plant has the necessary minerals to synthesize chlorophyll while the soil of group 2 plants is deficient in some or all the minerals required for chlorophyll synthesis.

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3 years ago
Who were the two scientists who discovered the structure of DNA
Kisachek [45]

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James Watson and Francis Crick were the first to discover the structure of DNA in the 1950s

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ludmilkaskok [199]
I would assume that it would be A
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2 years ago
How do the nephrons handle nitrogenous wastes such as urea uric acid and creatinine?
masya89 [10]
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