All of the following choices are descriptive of a population experiencing exponential population
growth EXCEPT ____.
a. resources are limited
b. graph of growth produces a "J" shaped curve
c. per capita growth rate remains constant
d. ?N/?t is increasing
e. population increases at an increasing rate
A
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Most of the ATP used by a muscle during prolonged, moderate activity is produced by ____
a. creatine phosphate b. lactate fermentation c. aerobic respiration d. glucose e. pyruvate
Which of the following statements concerning Down syndrome is FALSE?
a. Down syndrome involves nondisjunction. b. Down syndrome individuals have 47 chromosomes per somatic cell. c. Down syndrome incidence increases with increasing material age. d. Down syndrome individuals have an extra chromosome 22. e. Down syndrome is variable in expression.
In a hypothetical environment, fishes called pike-cichlids are visual predators of large, adult algae-eating fish (in other words, they locate their prey by sight). The population of algae-eaters experiences predatory pressure from pike-cichlids
Which of the following is least likely to result in the algae-eater population in future generations? A) selection for drab coloration of the algae-eaters B) selection for nocturnal algae-eaters (active only at night) C) selection for larger female algae-eaters, bearing broods composed of more, and larger, young D) selection for algae-eaters that become sexually mature at smaller overall body sizes
During swallowing, the air passageway of the pharynx is covered by the
a. larynx b. epiglottis c. trachea d. bronchi