Nonspecific internal defenses include
A) plasma cells.
B) skin.
C) tears and saliva.
D) inflammation.
E) T cells.
D
Biology & Microbiology
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Which test is used to differentiate P. multocida from Mannheimia haemolytica?
a. Indole b. Catalase c. Nitrate d. Sucrose
Biology & Microbiology
Reverse transcriptase is an enzyme encoded in the genomes of
A) red blood cells. B) phage ?. C) retroviruses. D) yeast. E) E. coli.
Biology & Microbiology
In 2004, the IUCN declared how many hotspot regions?
A) 10 B) 25 C) 35 D) 86
Biology & Microbiology
Replication of DNA
a. produces RNA molecules. b. produces only new DNA. c. produces two molecules, each of which is half-new and half-old DNA joined lengthwise to each other. d. generates excessive DNA, which eventually causes the nucleus to divide. e. is too complex to characterize.
Biology & Microbiology