Humus includes all of the following EXCEPT
a. feces.
b. dead organisms.
c. leaf litter.
d. weathered rock.
e. decomposing organic matter.
Answer: d
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Identify the stage of cellular respiration that occurs entirely outside of the mitochondria.
A. Electron transport chain B. Citric acid cycle C. Glycolysis D. All of the above occur outside of the mitochondria
The first fish:a
were small and jawless but had bony armor. b. appeared about 2 billion years ago. c. were the lobe-finned fish. d. appeared in the Silurian period. e. developed in the Precambrian period.
Evolution by genetic drift is most obvious in
A) migratory species. B) large populations. C) small populations. D) aquatic organisms. E) invertebrate species.
Are transformation and transduction the same process?
A. No only transformation passes on genes for pathogenicity. B. Yes, both processes transfer specific gene products to a specific bacterium. C. Yes, they both involve the acquisition of viral genes. D. No, although both involve gene transfer, the sources of the genetic material differ.