Sporocytes divide by meiosis to create spores. What is different between the microsporocyte and megasporocyte in angiosperms?
A. The ploidy of the spores produced.
B. The number of surviving spores.
C. Whether the spores develop into unicellular or multicellular gametophytes.
Answer: B. The number of surviving spores.
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Answer the following statement true (T) or false (F). Experiment 1 depends on recombination.
A researcher is studying the rII locus of phage T4. Three rII- strains are obtained: A, B, C, and D. In the first experiment, E. coli strain K(?) is coinfected with two rII- strains simultaneously and the results are recorded. Infection with A and B phage = plaques form Infection with A and C phage = plaques form Infection with B and C phage = no plaques form Infection with B and D phage = no plaques form Infection with C and D phage = no plaques form In a second experiment, coinfections are performed first in E. coli strain B, then the progeny phage are used to infect E. coli strain K(?). Progeny of A and B phage = plaques form Progeny of B and C phage = plaques form Progeny of C and D phage = plaques form Progeny of B and D phage = no plaques from
__________ is rapid diversification into new species
that occupy novel niches. Fill in the blank(s) with the appropriate word(s).
What happens to a lizard's metabolic rate when the temperature increases 10°C?
A) The metabolic rate stays constant. B) The metabolic rate approximately doubles. C) The metabolic rate approximately triples. D) The metabolic rate approximately quadruples.
The primary function of the light reactions of photosynthesis is to
A) use ATP to make glucose. B) convert light energy to the chemical energy of lipids. C) produce energy-rich ATP and NADPH. D) produce energy-rich glucose from carbon dioxide and water. E) produce NADPH used in respiration.