Which of the following biogeochemical cycles contain a mineral component? 

A. phosphorus
B. carbon
C. nitrogen
D. oxygen
E. water


A. phosphorus

Biology & Microbiology

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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

Biology & Microbiology

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

Biology & Microbiology

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

Biology & Microbiology

The earliest hominin fossils have been found in ____.

A. Africa B. Asia C. Australia D. the South Pacific E. Europe

Biology & Microbiology