Which of the following occurs when a person’s body temperature increases?
a. Blood vessels dilate.
b. Interstitial fluid decreases.
c. Blood vessels constrict.
d. Interstitial fluid increases.
a. Blood vessels dilate.
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Which one of the following cellular compartments does not have a double membrane structure separating it from the rest of the cell? Select all correct choices
A. chloroplasts B. lysosomes C. the nucleus D. mitochondria
Four of the five animals listed below possess some
type of coelom. Select the exception. a. nematodes b. annelids c. arthropods d. mollusks e. platyhelminthes
As sperm are produced, they go through several stages. Which one of the following stages develops directly into mature motile sperm?
A) primary spermatocytes B) spermatogonia C) spermatids D) secondary spermatocytes E) Sertoli cells
Bryophytes may feature all of the following at some time during their existence except
A) microphylls. B) rhizoids. C) archegonia. D) sporangia. E) placental transfer cells.