Answer:
Chromosome numbers from a diploid.
Explanation:
I am pretty sure your answer would be D.decomposer :)
The answer would be C. Energy is used through the food chain so energy always decreases. Population size would commonly decrease according to the pyramid of food chain but since there's no answer for that, C would be the most suitable
Cell, and gas are for sure made up of atoms so it’s either heat or a solid
They represent the parent's genotypes.