Secondary active transport ________.
A. often utilizes symport proteins
B. always uses the influx of sodium ions
C. utilizes energy directly
D. is only important in the kidney
Answer: A
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Which of the following is an inherited trait influenced by multiple alleles?
A) skin color B) ABO blood types C) sickle cell anemia D) color blindness
Channels present in the membranes of some cells that allow rapid movement of water are called ________.
A. streams B. aquaporins C. water tubes D. aqueducts
Osteoarthritis usually is caused by
A. wear and tear of the joint. B. increased uric acid in the blood. C. an autoimmune disorder. D. a bacterial infection in the joint. E. bursitis.
________ is(are) important during infancy and childhood for normal development of the nervous, skeletal, and muscular systems.
A. Thyroid hormones B. Growth hormone C. Epinephrine and norepinephrine D. Cortisol