Beta- carotene is converted to vitamin ___ in
the cells of the small intestine.
a. B12
b. A
c. E
d. C
e. D
B
Biology & Microbiology
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The separate feeding locations of these five warbler species on different portions of the same tree illustrates:
A. biotic transformation. B. competitive exclusion. C. resource partitioning. D. top-down population regulation.
Biology & Microbiology
Phylum Chordata includes two clades of invertebrates. Which of the following is an example of a chordate invertebrate?
a. sea slugs b. brittle stars c. lancelets d. moray eels
Biology & Microbiology
A(n) ________ is a global outbreak of disease
Fill in the blank(s) with correct word
Biology & Microbiology
Which of the following is the most difficult to inactivate?
A. enveloped viruses B. fungus spores C. bacterial endospores D. nonenveloped viruses E. protozoan cysts
Biology & Microbiology