Wolves feed on small and large mammals. Because they hunt and feed on other organisms, wolves are called
a) prey
b) predators
c) hunters
d) hosts
Ans: b) predators
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Mitochondrial DNA sequences are useful to track recent evolution because
A) it mutates faster than nuclear DNA. B) it encodes more ancient proteins than does nuclear DNA. C) it is more stable than nuclear DNA. D) it is inherited from mothers only.
Which of the following is an enzyme?
a. fibrinogen b. fibrin c. prothrombin d. thrombin e. plasminogen
If the gene encoding the enzyme rubisco is mutated such that it is non-functional, the process that would be affected is the ability to
A. make NADPH. B. make O2. C. make ATP. D. fix carbon. E. harvest photons.
Bactericidal drugs tend to target bacterial
A) cell walls, cell membranes, and nucleic acids. B) protein synthesis and nucleic acids. C) nucleic acids. D) cell walls and cell membranes. E) cell walls and enzyme activation.