What is the meaning of the group name Stramenopila?
A. “Needle-haired”
B. “Straw haired”
C. “Short flagella”
D. “Black haired”
E. “White haired”
Answer: B
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Tetanus prevents the release of neurotransmitters from
A. muscle cells. B. excitatory neurons. C. inhibitory neurons. D. tetano cells.
Baker's yeast is a single-celled ascomycete that is used in bread making. Why does yeast make bread dough rise?
A. Yeast cells suck in air when trapped in dough. B. Multiplication of yeast physically expands the dough. C. The fungal cells burst causes the dough to expand. D. Carbon dioxide is produced during fermentation.
Conjugating ciliates exchange a pair of haploid micronuclei that undergo mitosis as a diploid micronucleus, while the macronucleus in each
A. divides by meiosis. B. is expelled from the cell. C. fuses with each other. D. shrinks and becomes diploid micronuclei. E. disintegrates.
In an atom, the number of protons always equals the number of
A. neutrons and protons. B. neutrons. C. neutrinos. D. electrons. E. quarks.