Which of the following choices describes three general functions cells must perform?
A. Take up oxygen, prevent water entry, undergo mitosis frequently
B. Respond to all hormones, maintain a waterproof barrier, give rise to gametes
C. Grow until dividing, store complex carbohydrates, generate antibodies
D. Maintain shape, obtain nutrients, and dispose of wastes
Answer: D
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Which of the following does not occur after menopause?
A) Menstrual cycles cease. B) Ovulation ceases. C) Estrogen levels rise. D) GnRH secretion increases. E) FSH secretion increases.
Emotions influence autonomic reactions primarily through integration in the ________.
A) lateral horn of the spinal cord B) hypothalamus C) lateral geniculate of the thalamus D) inferior colliculus
The term secretion refers to
A) the manufacture and assembly of a material. B) synthesis of a protein for export from the cell. C) the process by which a cell releases a substance into the extracellular space for a particular use. D) storage of a material, until it is time for it to leave the cell. E) None of the answers describe secretion.
Which of the following infectious diseases is increasing in incidence after being on the decline for many years??
A) ?Tuberculosis B) ?Diphtheria C) ?Pneumonia D) ?SARS