In the reaction 6CO2 + 6H2OC6H12O6 + 6O2 carbon dioxide is one of the
a. reactants
b. products
c. enzymes
d. catalysts
Ans: a. reactants
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Microorganisms assimilate large amounts of all of the following except ________ into organic molecules.
A. sodium B. phosphorus C. nitrogen D. sulfur
An invertebrate is an animal that
A. does not have a backbone. B. has a backbone. C. has a complete digestive tract. D. has an incomplete digestive tract. E. does not have true tissues.
Which extinct hominin first appeared about 1.9 million years ago and had a larger brain than Homo habilis, its immediate predecessor?
A) Homo ergaster B) Homo neanderthalensis C) Homo sapiens D) Australopithecus
Which of the following represents a Nash equilibrium in the hawk-dove game? Assume that the cost of a fight c is greater than the benefit of the resource v that is being fought over
a. Both players always play dove. b. Both players always play hawk. c. One player always plays hawk, the other always plays dove; both players know each other's role before the encounter. d. One player always plays hawk, while the other plays dove a proportion of the time.