The ion required for skeletal muscle contraction is ____
a. chloride
b. potassium
c. calcium
d. phosphate
e. ATP
ANSWER: c
Biology & Microbiology
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In the life cycle of vascular plants, a
gametophyte forms from a
a. zygote. b. sporophyte. c. gamete. d. spore. e. zygote and a gamete
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The process of gene expression includes two steps:
__________ and __________. Fill in the blank(s) with the appropriate word(s).
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The term coitus means ____
a. sexual arousal b. fertilization c. ejaculation d. orgasm e. sexual intercourse
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The epididymis connects the
A) prostate and the urethra. B) vas deferens and the urethra. C) seminiferous tubules and the urethra. D) vas deferens and the seminal vesicles. E) testis and the vas deferens.
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