Why is water involved in most metabolic reactions in the human body?
A. It has a high surface tension.
B. It is a solute.
C. Its bonds are nonpolar.
D. It can dissolve many chemical compounds.
E. It can absorb and release heat without changing temperature very much.
D
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A reflex in which the sensory input and motor output are on opposite sides of the spinal cord is called a(n) _________ reflex arc.
A. intersegmental B. contralateral C. ipsilateral D. polysynaptic E. monosynaptic
Helen is a 62-year-old smoker. Her physician has diagnosed her as having emphysema that has caused her to hypoventilate. She is tired and sedentary. Besides having difficulty breathing, what other condition is contributing to her tiredness?
What will be an ideal response?
Of the three germ layers, the mesoderm forms the most body parts
Indicate whether the statement is true or false
Which organ is NOT part of the cardiovascular system and plays an important role in regulating blood pressure?
A) kidney B) spleen C) liver D) lung E) skin