Bacteria can grow well in cerebrospinal fluid because it has low levels of circulating antibodies and
a) water.
b) glucose.
c) complement.
d) sodium.
Ans: c) complement.
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The first plant to colonize the plains of Mount Saint Helens after this volcano erupted in 1980 was a prairie lupine
The prairie lupine is therefore an example of ____.
a. a secondary successor b. a pioneer species c. a keystone species d. an exotic species e. an introduced species
A protonema
a. is part of the sporophyte generation of a moss. b. is the product of spore germination of a moss. c. looks very much like a filamentous brown alga. d. produces the sporophyte when a bud grows from it
Which of the following is NOT involved in the
development of acne? a. excessive production of sebum b. Staphylococcus epidermidis c. dead skin cells d. hair follicles e. neutrophils
Which of the following crosses would always result in offspring that only display the dominant phenotype?
A. TT x tt B. Tt x Tt C. TT x TT D. Tt x tt E. Two of the crosses will always display the dominant phenotype