Answer:a major ecosystem defined by distinctive geography and receiving uniform solar radiation and moisture.
Explanation:
The kidneys make two main hormones, vitamin D and erythropoietin. Vitamin D is essential for a number of different functions in the body. Most of the vitamin D that is in the blood is inactive and it is modified by the kidney and other tissues to activate it.
<span> A cell typically expresses only a fraction of its genes and the different types of cells in multi cellular organisms rise bc of its different set of genes are ex-pressed
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Answer: A. virus strains multiplied in cell cultures
Be found along with the diatoms and Radiolarla, in the uppermost
