During exhalation the diaphragm
a. expands and moves up while the rib cage moves out and down.
b. and the rib cage return to their normal resting positions
c. contracts and moves down while the rib cage moves down and in.
d. contracts and moves down while the rib cage moves out and down.

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

Im inn a ! what"s the answer which of the following is one way creativity can scientists? by ensuring they follow the scientific method by increasing the amount of time it takes to complete scientific experiments by making sure they only try things that have already been proven by leading them to ask more questions about the natural world

Which term most precisely describes the cellular process of breaking down large molecules into smaller ones? a) catalysis b) metabolism c) anabolism d) dehydration e) catabolism