Which of the following characteristics is NOT
found in all animal groups?
a. multi-cellularity
b. coelomate
c. heterotrophy
d. symmetry
e. more than one of these
E
Biology & Microbiology
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The neurotransmitter released at neuromuscular junctions in vertebrates is
A. acetylcholine. B. serotonin. C. epinephrine. D. GABA. E. endorphin.
Biology & Microbiology
An instrument that measures lung volumes is a
a. caliper. b. spirometer. c. barometer. d. stethoscope.
Biology & Microbiology
Describe the two ways in which meiosis produces new combinations of genes. What will be an ideal response?
Biology & Microbiology
Wolves feed on small and large mammals. Because they hunt and feed on other organisms, wolves are called
a) prey b) predators c) hunters d) hosts
Biology & Microbiology