Which of the following have a flexible cuticle,
longitudinal muscles, a complete digestive
system, and a false coelom?
a. nematodes
b. cnidarians
c. flatworms
d. echinoderms
e. sponges
A
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Saltmarsh cordgrass is known as a(n)_____ because patches slow the velocity of incoming tides and stabilize stormy
beach habitat.
a. parasite b. foundation species c. symbiote d. mimic e. ecotone
Early in Earth's history, there was a massive "supercontinent" known as ____
a. Gondwana b. Pangea c. Botswana d. Pellagra e. Panagra
Which term can be applied to all of the vertebrates except for the jawless fish?
A. Endothermic B. Amniotes C. Tetrapods D. Gnathostomes
If an amine group added to a precursor comes from a preexisting amino acid, the process is called
a) beta-oxidation. b) amination. c) transamination. d) beta-reduction.