Which gland is both an exocrine and endocrine
gland?
a. pancreas
b. adrenal
c. ovary
d. thyroid
e. pituitary
Answer: a
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DNA replication occurs
a. before mitosis. b. immediately before prophase of mitosis. c. during prophase of mitosis. d. during metaphase of mitosis.
e. at any time during cell division.Air is continuously forced through tubes that thread through vascularized tissue in a pair of inelastic lungs in _____
a. some fish b. amphibians c. birds d. reptiles e. some small mammals
Describing bacterial conjugation, which of the following matings is most likely to result in a change from F- to F+?
A) donor F? recipient F+ B) donor Hfr recipient F+ C) donor Hfr recipient F- D) donor F? recipient Hfr E) donor F+ recipient F?
The form of DNA that is observed to adopt a left-handed helix is ________
A) P-DNA B) D-DNA C) A-DNA D) Z-DNA E) C-DNA