In ciliates macronuclei control __________
a. reproduction only
b. growth only
c. metabolism only
d. movement only
e. both growth and metabolism
E
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Animal communication involves what type of sensory information?
I) visual II) auditory III) olfactory IV) tactile A) only I and III B) only II and IV C) only II, III, and IV D) only I, II, and III E) I, II, III, and IV
In the figure above, which number identifies the structure of cones or rods that will respond to
wavelengths of RED light ONLY?
a. 3 b. 4 c. 5 d. 6 e. 7
Which option best describes the mechanism that causes a stoma to open?
A) K+ enters the guard cells and water follows passively, making the cells turgid. B) K+ activates water pumps in the guard cell membrane that make them turgid. C) K+ leaves the guard cells and water follows passively, making the cells flaccid. D) Loss of K+ from guard cells creates positive pressure and expands the guard cells.
Edward Jenner was the physician who first used cowpox to vaccinate individuals against smallpox.
Answer the following statement true (T) or false (F)