Which of the following is not a genotypic method of identification?
A. Direct antigen testing
B. Pulse-field gel electrophoresis
C. G + C composition
D. rRNA sequencing
E. DNA analysis with probes
Answer: A
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A wolf eats a rabbit that eats grass. The wolf is a(n) ________.
A. detritivore B. consumer C. autotroph D. producer
Which substance is a waste product of nitrogen metabolism in some amniotes that is excreted as a semisolid paste, reducing water loss?
a. nitric oxide b. uric acid c. squalene d. urea e. ammonium
The skin is an example of which part of the immune system?
a. adaptive b. innate c. cell-mediated d. humoral
In animal skeletal muscles, red muscle fibers
a. have an abundance of myoglobin. b. are mainly anaerobic. c. have few mitochondria. d. are good for short bursts of activity. e. more than one of these answers is true.