In all sexually reproducing organisms, the diploid phase of the life cycle begins at
a. spore formation.
b. gamete formation.
c. meiosis.
d. mitosis.
e. fertilization.
Ans: e. fertilization.
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A flower that lacks any one of its floral parts might be called:
A. misrepresented B. misinterpreted C. fatally flawed D. incomplete E. mostly complete
Which of the following members of the normal microbiota inhibit the growth of Candida albicans?
A. E. coli B. Lactobacillus species C. Staphylococci species D. Propionibacterium species
Suppose Priestley repeated his experiment using many kinds of plants besides mint, and that when different plants were placed under the jar the candle remained lighted for different periods of time. What would be a logical conclusion from these experiments?
a) Different plants require different amounts of water. b) Different plants release different amounts of carbon dioxide. c) Different plants require different amounts of light. d) Different plants release different amounts of oxygen.
Master genes that affect development tend to be highly ____; therefore, similarities in patterns of embryonic development reflect shared ancestry that can be evolutionarily ancient.
a. homologous
b. degraded
c. conserved
d. mutated
e. related