How would an animal compensate for a nonfunctional lateral line?
A. Gas exchange through the gill slits would have to be increased.
B. Propulsion and directional control would have to be facilitated by other fins.
C. Pressure waves in the water would have to be detected by other sensory structures.
D. Skeletal support would need to be reinforced internally.
E. Sex recognition by male fish would have to be accomplished by the olfactory structures.
Answer: C
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Heartburn is caused by the action of _______ on the ______
a. acid; esophagus b. acid; stomach c. mucus; heart d. proteolytic enzymes; esophagus e. proteolytic enzymes; stomach
All of the following factors can cause rapid evolutionary "jumps" except ________
A) single alleles with major effects on life history B) hybridization between species, producing a form that differs from both parents C) stabilizing selection on homeotic genes D) horizontal gene transfer between unrelated organisms E) transposable genetic elements, or transposons
The process by which the DNA code is converted from a single gene into a complementary single strand of mRNA is called
A) replication. B) reproduction. C) translation. D) metabolism. E) transcription.