3 years ago

What structure is responsible for the opening and closing of the stomata

1 answer:

6 0

There are guard cells surrounding each stoma that cause them to open or close throughout the life cycle of the plant. This occurs in response to water and ions concentration in the plant cell.

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25%

Explanation:

Let's assume that the recessive allele "p" imparts diseased conditions in the homozygous genotypes. The genotype of each of the carrier parents would be "Pp". A cross between Pp and Pp would produce progeny in the following phenotype ratio=

Pp x Pp= 3/4 Normal : 1/4 Affected.

Therefore, there are 1/4 or 25% chances for this couple to have a child with PKU.

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Select the correct answer.

yanalaym [24]

I would say that the answer is C

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_____ is the primary reproduction process of archaea and bacteria.

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Binary fission<span> is the primary reproduction process of archaea and bacteria

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