The presence of fungus in patient specimens can be detected by the ________ test
A) direct fluorescent antibody
B) indirect fluorescent antibody
C) hemagglutination
D) complement fixation
E) ELISA
A
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During which geological era did Pangea break apart?
a. Archean b. Paleozoic c. Mesozoic d. Cenozoic e. Proterozoic
When a land bridge connecting two continents
is cut off due to rising sea levels, this can lead to
a. sympatric speciation. b. disruptive selection. c. directional selection. d. hybrid sterility. e. allopatric speciation
What ability is found in stem cells that are totipotent?
A) Totipotent cells can only develop into blood cells. B) Totipotent cells can develop into any cell type. C) Totipotent cells can transform skin into muscle cells. D) Totipotent cells can change the genetic code of an organism.
Which statement is NOT true about mutations?
(a) A mutation is a change in the DNA that can generate offspring less fit for survival than their parents. (b) A mutation can be a result of imperfect DNA duplication. (c) A mutation is a result of sexual reproduction. (d) A mutation is a change in the DNA that can generate offspring that are as fit for survival as their parents are.