Answer:
Early humans that likely evolved from Cro-Magnons - <u>Homo</u><u> </u><u>sapiens</u><u>.</u>
The reason why the United states of America was concerned about the nuclear missiles in Cuba was that the missiles could be used to strike the United States. The correct option among all the options given in the question is option "c". The United States was also concerned that this could lead to a nuclear war and would badly impact USA.
Feeding - consuming food or items to statisfy hunger.
importance -
1) maintaining proper body(prevent muscles and organs from wasting away)
functioning
2) For brain development
3) to gain energy for activities