A paraphyletic group consists of several evolutionary lines that do not share a common ancestor
_____________________ Indicate whether the statement is true or false.
F, polyphyletic
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Konrad Lorenz taught ducks to behave as though he were their mother by providing the appropriate stimulus during a sensitive period. This form of learning is called
A) classical conditioning. B) fixed action behavior. C) altruism. D) habituation. E) imprinting.
Hybridomas are cells formed by the fusion of____
a. B cells and melanoma cells b. B cells and myeloma cells c. T cells and melanoma cells d. T cells and myelomacells e. B cells, T cells, and myeloma cells
The most sustainable method for limiting
human population growth is
a. decreasing birth rate. b. increasing carrying capacity. c. decreasing competition. d. increasing death rate. e. exploiting outer space
A gametophyte is a __________ plant body that
grows by __________ from a __________. a. haploid; mitosis; spore b. diploid; mitosis; spore c. diploid; mitosis; zygote d. diploid; meiosis; fertilized egg e. haploid; mitosis; fertilized egg