D. is correct: Koalas evolved after trout.
(A is false, B is also false bc amoeba are unicellular, C is false too, they are definitely not in the same class)
They can be used for powering our cars and homes
so that it follows the law of conservation of mass.
have a goed day
The energy not used by an original organism being consumed is being transferred "flowing" to the organism that is consuming the original one, thus being the flow of energy throughout an ecosystem.
What do you mean ?? By that
