The redness and induration found after a tuberculin skin test involve the action of

A. sensitized T cells.
B. IgE.
C. complement.
D. basophil cells.


A

Biology & Microbiology

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Semen components are produced by

a. the prostate gland. b. the seminal vesicles. c. the testes. d. the urinary bladder. e. all except “urinary bladder.”

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The cells of triploid animals, like certain salamanders, are individually larger, yet their overall body size is no different from that of diploids. Pose a developmental hypothesis for the control of morphogenesis in such animals

What will be an ideal response?

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Controls basic body functions such as breathing and heart rate best describes the ______.

A. olfactory lobe B. cerebellum C. breainstem D. cerebrum

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The three main anatomical and functional divisions of the brain are the

A) forebrain, midbrain, hindbrain. B) frontal, parietal, occipital. C) cerebellum, medulla oblongata, pons. D) ventricles, meninges, nerve tracts. E) hypothalamus, thalamus, pituitary.

Biology & Microbiology