The smallest branches of the respiratory tree are the:a
pharynx.
b. tracheae.
c. bronchial tubes.
d. bronchioles.
e. bronchi.
d
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Communal courting areas are called
A. leks. B. mating structures. C. resource areas. D. arenas. E. None of these choices are correct.
Compare and contrast DNA synthesis in prokaryotes and eukaryotes. What will be an ideal response?
Motor neurons carrying information to smooth muscle, cardiac muscle, and all other tissues and organs except skeletal muscle belong to the ________ division of the peripheral nervous system
Fill in the blank(s) with correct word
The only known population of a reptile species lives on an African mountain. The population is relatively large, but no close relatives of this species are known. Suppose you could stop all mutations within the population and all emigration out of this
population. Which statement best describes the probable future of this population? A) The population will decline and become extinct after a few generations because of excessive inbreeding. B) Genetic drift will cause major evolutionary changes in the population. C) Evolution will continue as natural selection acts on the genetic variability that exists in the population. D) Although the population will cease to change, it may survive for as long as the environment remains constant.