Plasma membranes allow some substances to pass through more readily than others. This property is referred to as _______.
A. Active transport
B. Endocytosis
C. Selective permeability
D. Phagocytosis
Answer: C. Selective permeability
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A young boy who has been a star pitcher for his Little League team suddenly complains of swelling and extreme soreness of his pitching arm at the elbow whenever he throws a pitch. How would a knowledge of surface anatomy assist in determining the nature of the problem?
What will be an ideal response?
Long reflexes
A) are required for peristalsis and segmentation. B) involve the myenteric plexus. C) provide a higher level of control over digestive functions. D) do not involve the CNS. E) are controlled by the enteric nervous system.
The number of chromosomes in daughter cells produced by meiosis is ________ the number of chromosomes in daughter cells produced by mitosis.
one-fourth half equal to twice four times
A lesion in the preoptic region of the hypothalamus causes:
A. hypothermia B. decreased sweating C. increased food intake D. decreased food intake E. cutaneous vasodilation