Which of the following statements about resource use is true? a. The use of renewable resources has no inherent costs.
b. Resource use, whether renewable or nonrenewable, must be carefully managed to reduce the
impact on the environment.
C. Nonrenewable resources are used for energy, because there are no renewable resources that
can be used as a source of energy.
d. The overuse of nonrenewable resources is less environmentally damaging than the overuse of
renewable resources.

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

Which statement about dna replication is true? a. eukaryotes only have one circular chromosome that unwinds at multiple locations. b. eukaryotes can only replicate one segment of a chromosome at a time. c. prokaryotes can only replicate their single circular chromosome in the nucleus. d. prokaryotes only have one origin of replication to initiate replication.

What is a difference between systemic and pulmonary circulation? a. systemic circulation carries oxygenated blood to the lungs and pulmonary circulation carries deoxygenated blood to the body. b. systemic circulation carries deoxygenated blood to the lungs and pulmonary circulation carries oxygenated blood to the body. c. systemic circulation carries deoxygenated blood to the body and pulmonary circulation carries oxygenated blood to the lungs. d. systemic circulation carries oxygenated blood to the body and pulmonary circulation carries deoxygenated blood to the lungs.