(Q).
Q: What system serves as the relay between the cns and the internal organs? Choices: - cellular nervous system - central nervous system - limbic nervous system - autonomic nervous system A:
(A).
autonomic nervous system

(Q).
Q: What is driven by the sun's energy and moves water over the surface of earth? Choices: - sun cycle - tides - weather cycle - the water cycle A:
(A).
the water cycle

(Q).
Q: Fossil evidence indicates that the ancestors of humans originated on which continent? Choices: - north america - australia - south america - africa A:
(A).
africa