What is the science that deals the study of human beings?

What do heterotrophic cells need to survive?

How does the diagram explain ocean currents? earth tilt 23.5 degreesquestion 1 options: earth's tilt causes uneven heating of earth which causes currents. earth's tilt causes the ocean to move because of gravity. earth's tilt and its rotation cause currents. earth's tilt causes uneven distribution of salt which causes currents.

Which of the following is an eon in the time scale? phanerozoic proterozoic archean all of the above