Alfred Wallace and Charles Darwin where both the theorists
behind the natural selection mechanism by which animals evolve to adapt in
their environment. Distinctively, Wallace was the co-author of the theory by
which his expeditions made him discover the processes that act on how evolution
occurs which he relayed to Darwin. However, as both peers in the theory of
evolution it seems to have arose that Wallace never became popular on this idea
unlike Darwin.
Integumentary system
EXPLANATION: Defends the body after it has been invaded by a microscopic organism. Integumentary system. Protects the internal tissues of the body from potential harm.
All of the above supply energy to the body. Fats contain the most amount of them all.