Because ____ is less likely to occur between distant populations of the same species, their gene pools and phenotypes
are often somewhat different.
a. genetic drift
b. a population bottleneck
c. a founder effect
d. gene flow
e. asexual reproduction
ANSWER: d
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Which one of the following is a pyrimidine found in DNA?
A. adenine B. guanine C. uracil D. thymine E. None of these choices is pyrimidines found in DNA.
What other information is related to the question? Which information is most useful? • Do you accept a hypothesis or reject a null hypothesis?
What will be an ideal response?
Answer the following statements true (T) or false (F)
1. Protists can be autotrophs. 2.Slime molds may exist as either single amoeboid cells or large masses of cells that behave as one multicellular organism. 3.Water molds are unlike fungi in that water molds have diploid filaments and cell walls containing cellulose, whereas fungi have haploid filaments and cell walls containing chitin. 4.Molecular evidence suggests that plants and green algae did not descend from a common ancestor. 5.Stomata allow plants to exchange carbon dioxide and oxygen with the atmosphere.
Microorganisms characterized by the absence of a nucleus are called
A) fungi. B) pathogens. C) eukaryotes. D) prokaryotes. E) viruses.