In the spinal cord, white matter is organized into
A. horns and the gray matter into roots.
B. columns and the gray matter into horns.
C. columns and the gray matter into tracts.
D. horns and the gray matter into columns.
Answer: B
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Water and sodium chloride are examples of inorganic molecules
Indicate whether this statement is true or false.
The utricle is
a. an otolith organ. b. activated when a person bends the head to look down at the ground. c. activated when a person starts to walk. d. two of these answers. e. all of these answers.
Small arteries that direct blood into capillary beds are:
A) elastic arteries B) muscular arteries C) arterioles D) capillaries
Rod cells are filled with a pigment called ________, and the lack of it can lead to ________.
A. vitreous humor; glaucoma B. rhodopsin; night blindness C. rhodopsin; color blindness D. melanin; nearsightedness