What is the location of the internal pacemaker that sets biological rhythms?
A. suprachiasmatic nucleus of the brain
B. ventricles of the heart
C. endocrine gland in the gonads
D. photoreceptors of the eye
E. the adrenal glands
A
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Stress can affect the immune response in all of the following ways except by
A) inhibiting glucocorticoid release. B) depressing the inflammatory response. C) reducing the number of phagocytes. D) inhibiting interleukin secretion. E) increasing the level of cortisol.
The walls of bronchioles are dominated by ________, whose activity is regulated by the autonomic nervous system.
A) C-shaped rings of hyaline cartilage B) elastic cartilage C) skeletal muscle D) a mix of cartilage plates and smooth muscle E) smooth muscle
Describe the three parts necessary for homeostatic regulation
A) The three parts necessary for homeostatic regulation are the receptor, the pathway, and the outcome. B) The three parts necessary for homeostatic regulation are the chemical, the membrane, and the receptor. C) The three parts necessary for homeostatic regulation are the afferent signal, the central signal, and the efferent signal. D) The three parts necessary for homeostatic regulation are the set point, the stimulus, and the result. E) The three parts necessary for homeostatic regulation are the receptor, the control center, and the effector.
Which of the following is an end product of protein digestion?
A. glucose B. amino acids C. LDL molecules D. micelles E. nucleic acids