Classification schemes will include
a. species.
b. genus.
c. family.
d. phylum.
e. all of these.
E
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This animal as an adult has radial symmetry,
an internal skeleton, fluid-filled feet, and is a deuterostome. This animal is ___.
a. a sea star b. a jellyfish c. a slug d. an isopod e. more than one of these
A common second messenger molecule is
a. a steroid compound. b. cyclic AMP. c. ADP. d. prostaglandin. e. intermedin.
What type of tissue consisting of a single layer of cells containing cilia lines the throat and nasal passages?
a. simple epithelium b. simple squamous epithelium c. stratified columnar epithelium d. pseudostratified epithelium e. compound epithelium
The misshapen version of a protein that causes properly folded proteins to misfold is the ________
A) virus B) prion C) viroid D) capsid