A group of vertebrates that do not have bone are the
A. ray-finned fishes.
B. sharks.
C. amphibians.
D. reptiles.
B. sharks.
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Artificial selection and hybridization can demonstrate the __________ basis of behavior.
A. cognitive B. operant C. genetic D. associational E. endogenous
A prophage:a
is phage DNA that is integrated into viral DNA. b. is phage DNA that is integrated into bacterial DNA. c. replicates only when the eukaryotic cell it infects replicates. d. is an underdeveloped lytic virus. e. is a bacterial cell about to lyse
Mature red blood cells do not have a well-defined nucleus or other membrane-bound organelles. What is the advantage of this characteristic?
What will be an ideal response?
Aldosterone is responsible for increasing the reabsorption of sodium. Indicate whether the statement is true or false