What is the function of setae of the integument of earthworms?
A) They serve as chemosensory structures.
B) They serve as proprioceptors.
C) They provide anchorage during burrowing.
D) All of the above
Answer: C
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The plasma membrane of a muscle fiber is referred to as the __________.
Fill in the blank(s) with the appropriate word(s).
Blood leaving the left ventricle passes through which of the following structures?
a) Right atrium b) Interventricular septum c) Bicuspid valve d) Aortic semilunar valve e) Pulmonary semilunar valve
Color vision:
a. depends on thee types of cone cells b. depends on rod cells c. is not detected in the eye but is a function of the brain d. usually occurs better in low levels of light e. depends on photopigments for seven different colors
The muscles of the vertebral column have what general actions? Select all that apply.
a. Abduction b. Extension c. Lateral flexion d. Rotation e. Supination