Explain the basic ideas of natural selection proposed by Charles Darwin
What will be an ideal response?
Darwin's ideas included the following: (1 ) Within a species there is variation, and some of this variation has a genetic basis; (2 ) some individuals have more surviving offspring than do others because their particular inherited characteristics make them better suited to their environment; and (3 ) traits of more successful individuals become more common in the population.
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In an isometric contraction of a skeletal muscle,
(a) the tension in the muscle increases. (b) movement occurs. (c) no movement occurs. (d) both a and c occur.
The Florida panther, as a symbol of Florida's conservation campaign, serves as a(n)
A. indicator species. B. flagship species. C. endemic species. D. keystone species. E. umbrella species.
Which of the following is hydrophilic?
A) cellulose B) testosterone C) butter D) cholesterol
Which types of bacteria are inhibited from growing on Endo agar?
A) Gram-positive bacteria B) Gram-negative bacteria C) Lactose fermenting bacteria D) Nonlactose fermenting bacteria