A researcher knows the geographic range of a population of butterflies. Given only this information, what else can she deduce about this butterfly population?
A. the size of the butterfly population
B. the density of the butterfly population
C. the parasites/predators that these
butterflies may encounter
D. the age structure of the butterfly population
E. the intrinsic growth rate of the butterfly
population
C
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Cells that have undergone homologous recombination for gene replacement would have which of the following gene combinations?
A. Only the cloned gene B. Only the original gene C. Both the cloned and original gene D. Neither the cloned or original gene
The enzyme that directly converts NADP+ to NADPH is
A. ferredoxin. B. NADP reductase. C. plastocyanin. D. RUBISCO. E. cytochrome complex.
In an isolated population of fruit flies, 4 percent of the individuals have pink eyes, a homozygous recessive condition,
and 96 percent have the dominant black eye phenotype. What percentage of the population are heterozygotes?
a. 32% b. 16% c. 48% d. 88% e. 4%
During the Cretaceous period, ____
a. mammals diversified and flourished b. life appeared on this planet c. the first animals with shells and skeletons appeared
d. the dinosaurs reached their peak and then became extinct e. the first human-like apes appeared