Which of the following biogeochemical cycles contain a mineral component?
A. phosphorus
B. carbon
C. nitrogen
D. oxygen
E. water
A. phosphorus
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If an athlete is burning glucose only, what is the ratio of oxygen consumed to carbon dioxide that will be produced?
C6H12O6 + 6O2 ? 6CO2 + 6H2O A. 1:1 B. 1:6 C. 2:1 D. 1:2 E. 6:1
A taxon that includes only birds and bats, two clades of vertebrates capable of flight, is considered ____
a. paraphyletic b. polyphyletic c. monophyletic d. complete e. incomplete
Which is the correct sequence involved in the regulation of organ systems?
a. stimulus, receptor, integrator, response, effector b. stimulus, response, integrator, receptor, effector c. stimulus, receptor, integrator, effector, response d. stimulus, integrator, receptor, effector, response e. stimulus, effector, integrator, receptor, response
The earliest hominin fossils have been found in ____.
A. Africa B. Asia C. Australia D. the South Pacific E. Europe