In metapopulation theory, what does P stand for?
A) population size
B) probability of extinction
C) proportion of patches occupied
D) rate of colonization
C
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Which of the following is NOT correct regarding the purple photosynthetic bacteria photosynthetic apparatus?
A. Possesses bacteriochlorophylls a or b B. Performs anoxygenic photosynthesis C. Has intracytoplasmic membranes (ICMs) to provide space for photosynthetic units (PSUs) D. Apparatus is continuous with the plasma membrane E. Apparatus is straight to decrease surface area and contain reactions
What marine biology laboratory inspired other facilities of the same kind?
a. Marine Biological Laboratory at Woods Hole b. Friday Harbor Laboratories of the University of Washington c. Museum of Comparative Zoology at Harvard University d. Scripps Institute of Oceanography in California
Nitric oxide in the exhaust of cars and trucks results in
a. photochemical smog. b. industrial smog. c. a thermal inversion. d. none of these. e. all of these.
The first successful treatment of a genetic disorder by gene therapy was the curing of a 4-year-old girl who had severe combined immunodeficiency disease
Because the engineered cells did not live forever, this child supplemented her treatment with regular doses of A) adenosine deaminase (ADA). B) insulin. C) hemoglobin. D) bacteria. E) B lymphocytes.