What do tapeworms eat?
A) intestinal bacteria
B) host tissues
C) red blood cells
D) intestinal contents
E) plant matter
D
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Which of the following would lead to an increase in testosterone production by Leydig cells?
A. an increase of GnRH production B. a decrease in LH production C. an increase in FSH production D. use of synthetic anabolic steroids E. None of the answer options would lead to an increase in testosterone.
The organisms isolated from hydrothermal vents are typically
A. phototrophs. B. chemolithoautotrophs. C. rhizobia. D. bacteroid. E. phototrophs, rhizobia AND bacteroid.
Recombinant chromosomes have a mix of paternal and maternal alleles due to
a) random fertilization. b) linkage. c) independent assortment. d) crossing over. e) mutation.
Which term describes the spread of malignant tumors to a distant location?
a. metastasis b. anaplasia c. infiltration d. invasion e. encapsulation