When you exhale, or breathe out, the process happens in reverse. The diaphragm, which had contracted and moved down, now relaxes and moves back up. The ribs contract, creating a smaller space in the chest. After the body has used the oxygen it needs, the blood carries carbon dioxide and other waste products. Blood comes back to the capillaries, and the waste products enter the alveoli. Then they are breathed out through the bronchioles, bronchi, trachea and finally the nose and mouth. What happens to the rib cage when you exhale?

A
It expands.

B
It disappears.

C
It gets smaller.

D
It stays the same.

Scientists studied reproduction in the new zealand mud snail to answer the question, “are there benefits to reproducing sexually or asexually? ” which of these hypotheses would least likely aid the scientists as they worked to answer the question? sexual reproduction is advantageous over asexual reproduction because it reduces the rate of mutation accumulation. asexual reproduction is advantageous over sexual reproduction because it allows the snails to produce more offspring. sexual reproduction is advantageous over asexual reproduction because it allows for snails to have increased genetic variation. asexual reproduction is advantageous over sexual reproduction because it decreases the snails’ need for social

What is a food web? a. the structure used to trap food b. a set of complex carbohydrates c. a group of interconnected food chains d. the pattern of food nutrition

Which of the following statements about fungi are true? check all that are true. fungi get food through the process of photosynthesis. fungi get food by absorbing it from their environment. fungi can be unicellular or multicellular. fungi typically grow in hot, dry environments.