Which germ layer are the tonsils derived from?
A. ectoderm
B. mesoderm
C. endoderm
C
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Describe the effects of the concentration and electrical gradients on the movement of Na+ and K+ ions through the membrane
What will be an ideal response?
Spermatogenesis is directly controlled by
a. LH b. FSH c. prostaglandins d. both a and c e. both b and c
Type I diabetes mellitus is caused by ________.
A. a severe hypersecretion of ADH B. a severe hyposecretion of ADH C. the hyposecretion of insulin due to destruction of the beta cells D. a reduction of the insulin receptors on target cells E. a reduction of ADH receptors on the target cells
These receptors detect specific molecules in our external and internal environments.
A. Thermoreceptors B. Chemoreceptors C. Photoreceptors D. Mechanoreceptors E. Baroreceptors