The hypothalamus has ultimate control of the testes' sexual functions.
a. true
b. false
Answer: a. true
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Substance X is a mostly polar molecule and Substance Y is a mostly non-polar molecule of a similar size. Which will diffuse from the extracellular fluid to the intracellular fluid faster if they are in equal concentrations outside and inside the cell?
A. Substance X will diffuse faster. B. Substance X and Substance Y will diffuse at the same rate, as they are of equal size and concentration. C. Substance Y will diffuse faster.
Loss of motor and sensory control of the trunk of the body and lower extremities as a result of a spinal cord injury describes ________
A) Paraplegia B) Peripheral neuropathy C) A slipped disk D) Quadriplegia
After a fracture of the diaphysis has healed, the thickened region that results is called the
A) epiphyseal plate. B) external callus. C) dense tuberosity. D) condyle. E) fracture facet.
The HIV blood test detects anti-HIV antibodies. Why do viruses stimulate antibody production? How effective are antibodies against viruses, as compared to bacteria? How are viral infections normally eliminated in the body? Why does a person's immune response fail to eliminate life -long viral infections such as HIV and herpes? Explain all of your answers.
What will be an ideal response?