The basic cells that the body uses for rapid communication and control are
a. neurons.
b. neuroglia.
c. chondrocytes.
d. formed elements.
e. nerves.
A
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The largest part of the brain of a mammal is the
a. cerebrum. b. cerebellum. c. pons. d. medulla oblongata.
The biologist responsible for the formulation of the endosymbiotic theory is Dr. Lynn Margulis.
a. true b. false
The Hardy-Weinberg law is useful for
A. determining the extent to which a sexually reproducing population is evolving. B. predicting when genetic drift will occur in a sexually reproducing population. C. determining when speciation will occur. D. predicting when specific groups of organisms will become extinct. E. determining if a patient has a genetic disease.
Figure 28.12
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The following question refers to the accompanying figure illustrating transport in phloem.
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Letter ____ can indicate a fruit or developing root cells.
A. A B. B C. C D. D E. E