In most mammals, the left lung is divided into how many parts?
a. two
b. four
c. five
d. three

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.

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer

Which statement is a physical property? becomes moldy quicklyeasy to digestconducts electricity poorlydoes not burn