How does nutrient availability relate to the primary productivity of an ecosystem?

Every organism needs nutrients to build tissues and carry out life functions. Like water, nutrients pass through organisms and the environment through biogeochemical cycles. ... If ample sunlight and water are available, the primary productivity of an ecosystem may be limited by the availability of nutrients.

Explanation:

it's     c       this is a cell (b) with a nucleus (c) containing dna (a). the dna is organized into chromosomes (d). a section of the chromosome that codes for a trait is called a gene (e).

the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

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