The ___ Echinoderm lineage is composed of sea stars, each with a central disk surrounded by 5 to 20 "arms."
a. Echinoidea
b. Ophiuroidea
c. Crinoidea
d. Holothuroidea
e. Asteroidea
ANSWER: e
Biology & Microbiology
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What is the process through which many animals develop irreversible species-specific behavior patterns?
A. altruism B. taxis C. operant conditioning D. cognitive learning E. imprinting
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Which of the following organs serves as a transition between the pharynx and the trachea?
a. nasal cavity b. bronchi c. larynx d. alveoli
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Is it possible to prevent mutations entirely? What will be an ideal response?
Biology & Microbiology
The heart condition caused by Lyme disease infection is ____
a. endocarditis b. tachycardia c. myocarditis d. “blue babies” e. rheumatic fever
Biology & Microbiology