The hypothalamus has ultimate control of the testes' sexual functions.
a. true
b. false
Answer: a. true
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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
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?
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.
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.