Small, generation-by-generation changes to a population' s gene pool is
A. Uniformitarianism
B. Macroevolution
C. Microevolution
D. Natural selection
E. Artificial selection
C. Microevolution
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The distribution of biomes is primarily determined by weather/wind cycles due to latitudinal gradients in
A. temperature. B. elevation. C. rivers. D. biodiversity. E. rainfall.
Genetic map units represent ____
a. absolute physical distances between genes b. locations of different alleles of a gene c. the chromosome on which a given gene is located d. the actual DNA sequence of a gene e. relative positions of genes with respect to one another
The pyramid of energy illustrates
a. the first law of thermodynamics. b. the diminishing of usable energy as it is transferred through an ecosystem. c. that energy can be recycled. d. the biological magnification of materials in an ecosystem. e. the diminishing number of organisms at each trophic level.
Cilia are:
A) the cytoplasmic extensions or false feet that some cell types use for locomotion. B) many short, hair-like cellular extensions that beat to produce movement. C) the circular chromosomes of bacteria. D) different kinds of cells, each designed to perform a different function.