Paired, fleshy extensions of the body wall in bristle worms that are used for locomotion and gas exchange are called
____.
a. metanephridia
b. parapodia
c. septa
d. clitella
e. setae
ANSWER: b
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Relatively small organic molecules with a central carbon atom which is bonded to a carboxyl group, an amino group, a carbon containing group, and a hydrogen atom are called
A. nucleotides. B. fatty acids. C. enzymes. D. amino acids. E. peptides.
The aspect of conservation ecology concerned with returning degraded ecosystems (as nearly as possible) to their natural state is
A) bioremediation. B) sustainable development. C) restoration ecology. D) landscape ecology.
Nerve agents block _______________, an essential enzyme of the nervous system.
A) epinephrine B) acetylcholine C) norepinephrine D) cholinesterase
Triatoma, commonly called "kissing bugs," are vectors of
A. African sleeping sickness. B. Chagas' disease. C. Cyclosporiasis. D. Leishmania. E. schistosomiasis.