The Answer is Quick energy.
I'd mark answer B :) technically it means that you must eat enough food rich in those aminoacids because they can't be synthesized by the organism.
Answer:
the diagram shows the body structures that are similar though in different species due to common ancestry, this evidence is comparative anatomy.
Kelp --> sea urchins ---> sea otters best represents the feeding relationships in a kelp ecosystem that has not been disturbed
by humans.
