The highlighted structures innervate which of the following?
a) deep muscles of back
b) deep muscles of thorax
c) superficial muscles of back
d) superficial muscles of neck

Which statements correspond to cellular respiration? co2 diffuses passively into the cell. co2 diffuses passively out of the cell. co2 must be pumped out of the cell. o2 diffuses passively when produced inside the cell. o2 diffuses passively when converted to co2. o2 is pumped in and forces co2 out.

What are the four stages of cell signaling?

Which factor is difficult to assess in a cost-benefit analysis