Which of the following is an enzyme?
a. fibrinogen
b. fibrin
c. prothrombin
d. thrombin
e. plasminogen
D
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Scientists believe whales evolved from land
animals for which of the following reasons?
a. they are genetically close to a group of land animals called artiodactyls b. fossils found had a mix of whale and artiodactyl features c. some had tails but swam with their feet d. some had feet but swam with their tails e. all of these are reasons that scientists believe whales evolved from land animals
A stretch receptor is classified as a
a. chemoreceptor. b. mechanoreceptor. c. photoreceptor. d. thermoreceptor. e. all of these.
Sexual dimorphism is most often associated with what type of mating system?
A. Promiscuous B. Polygynous C. Monogamous D. Polyandrous
Which is NOT a difference between bacteriophages and animal viruses?
a. Many animal viruses are enveloped. b. Many animal viruses replicate their genome within their host cell’s nucleus. c. Animal viruses are classified by their genome. d. The entire virion of animal viruses enters the host cell.