Shivering in response to a cold draft is an example of
A. A homeostatic mechanism
B. Negative feedback
C. A physiological reflex
D. Thermoregulation
E. All of the choices are correct
E
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Hallucinogenic drugs, such as LSD, function by
A) stimulating receptors for norepinephrine. B) blocking acetylcholine receptors. C) increasing the production of GABA. D) stimulating serotonin receptors. E) mimicking the action of dopamine.
From deep to superficial, what is the correct order of the layers of the epidermis?
A) stratum corneum, stratum spinosum, stratum lucidum, stratum granulosum, stratum basale B) stratum lucidum, stratum corneum, stratum spinosum, stratum basale, stratum granulosum C) stratum basale, stratum granulosum, stratum spinosum, stratum lucidum, stratum corneum D) stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum
Which of the following fetal shunts bypasses the fetal lungs?
A. ductus arteriosus B. ductus venosus C. umbilical arteries D. umbilical vein E. ductus byosus
Simple ________ epithelium occurs where diffusion, osmosis, and filtration are important functions within body organs.
A. pseudostratified ciliated columnar B. squamous C. columnar D. cuboidal