The various beak sizes, shapes and foraging habits of Darwin's __________ were an important observation that contributed to Charles Darwin's development of his theory of evolution by natural selection.
Fill in the blank(s) with the appropriate word(s).
Finches
Biology & Microbiology
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When in the human body, Legionella pneumophila resides
A. in alveoli. B. in alveolar macrophages. C. in the lower intestinal tract. D. in the meninges.
Biology & Microbiology
Darwin bred pigeons to have particular traits. Today people breed dogs, cats, horses, and other animals for the same reason. These activities illustrate
A) negative selection. B) positive selection. C) artificial selection. D) veterinary selection.
Biology & Microbiology
The last structure that air moves through in
mammals before entering the alveoli is(are) the a. larynx. b. bronchi. c. bronchioles. d. trachea. e. pharynx
Biology & Microbiology
Which of the photographs in the above figure
represents the gymnosperm? a. moss b. fern c. conifer d. monocot e. all of these
Biology & Microbiology