Trichomonas vaginalis
A. causes vaginitis with a foul-smelling discharge in females.
B. causes urethritis in males.
C. has four flagella and an undulating membrane.
D. does not produce cysts.
E. All of the choices are correct.
Answer: E
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Genes from different sources that are related in sequence due to shared evolutionary ancestry are called ________ genes, and groups of such genes are known as ________
A) homologous / gene families B) paralogous / functional genes C) orthologous / gene families D) homologous / functional genes
Which of the following represents the
complete stages of interphase?
a. G1 and G2 b. S and G2 c. G1 and S d. G1, S, and G2 e. prophase, metaphase, anaphase, and telophase
Refer to the accompanying figure. At what point is there potential to undergo mitosis to become a gametophyte?
a. 2 b. 3 c. 5
d. 6 e. 9
To conserve precious salts, freshwater fish
A) drink large amounts of water and produce small amounts of urine. B) drink almost no water and produce large amounts of dilute urine. C) excrete salt ions and small amounts of urine. D) consume salt ions in food and eliminate water by osmosis.