Hello love! The answer for your question is D: grass - producer because all energy starts from the producers so the consumers can get energy. Producers are the creators of energy
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Answer:
C. A concentration gradient must exist.
Each male and female sex cell has 46 chromosomes in it. The number of chromosomes are reduced to half(23), so that when the sex cells combine, they also add up to 46(23+23). If the chromosomes did not reduce to half, the number of chromosomes would be off balance and the gamete would not survive.
C-nucleic acid is a component of deoxyribonucleic acid which is the provides the cell with its genetic makeup as well as its genetic blueprint.
