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Elanso [62]
3 years ago
13

The _____ produces secondary phloem and xylem tissue, adding to a tree's girth.

Biology
1 answer:
lilavasa [31]3 years ago
7 0
The aswer is b. Vascular Cambium

it is a plant tissue which is located between Xylem and Phloem in the stem and root of a vascular plant and the source that produces Secondary xlem and phloem

Nb : Vascular Cambium does not transport waters , minerals, it only produce Xylem and Phloem which add the tree's girth
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A recessive allele causes phenylketonuria (PKU) when homozygote. If the frequency of the recessive allele is 0.05 in the populat
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0.095

Explanation:

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Answer:

d) A constitutively active mutant form of PKA in skeletal muscle cells would lead to an excess in the amount of glycogen available.

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