The answer is A because the males sperm determines the sex of a baby.The determines sperm is carrying an X or Y chromosome.
X - linked traits appear more often in males because males only have one x chromosome. One copy of an x - linked trait is all that a male would need to possess that trait. Females have two x chromosomes, so they would require 2 copies of the x - linked trait in order to possess it.
It produces new, organic, rich soil, that can contribute to agriculture and farming, as well as the decomposers that live in them. It is very good to compost.
The third one is ze answer
A type of diagram that shows how energy moves in a ecosystem is a food chain
