A coral species that currently inhabits a single reef off the coast of Indonesia would be considered
A. endemic.
B. a transitional form.
C. exotic.
D. vestigial.
Answer: A
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Which of the following statements about insect respiration is false?
A. After diffusing through the walls of the tracheoles, oxygen is delivered to the body tissues by the circulatory system. B. Air enters the bodies of insects through abdominal openings called spiracles. C. Air sacs increase the speed of air movement through the respiratory system. D. The insect respiratory system is composed of a series of branching tubes called tracheae. E. None of the answer options is false.
Which aquatic biome often has reduced nitrogen levels, and therefore more carnivorous plants?
a. Bogs b. Rivers and streams c. Lakes and ponds d. Estuaries
If a woman were exposed to a chemical that caused the cilia in her reproductive system to stop moving, what specifically is likely to happen?
A) She would no longer be able to ovulate, and early menopause would occur. B) Ova could no longer pass through oviducts. C) Spontaneous abortions would occur. D) She would have many ovarian cysts.
The potential capacity to produce offspring is called:a
life history traits. b. fitness. c. age structure. d. density. e. fecundity.