Thermoreceptors consist of ____
a. sensory receptors enclosing an afferent neuron
b. sensory receptors formed by a cell that synapses with an afferent neuron
c. free nerve endings of afferent neurons
d. stereocilia
e. statocysts
ANSWER: c
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WASH initiatives are public health initiatives that address WAter, Sanitation, and Hygiene. Which of the following diseases would not be expected to show a decrease in prevalence following a successful WASH campaign?
A. Clostridium difficile infection B. Entamoeba infection C. Schistosomiasis D. Shigella infection E. Ascaris lumbricoides infection
Which type of molecule reinforces the shells of forams?
a. calcium carbonate b. hydrogen sulfide c. copper sulfate d. silica
The first part of the renal tubule is called the _____ and is specialized for _____
A. proximal convoluted tubule; reabsorption of electrolytes and other nutrients. B. loop of Henle; creation of a concentration gradient in the interstitial fluid C. distal convoluted tubule; secretion of additional wastes into the urine D. distal convoluted tubule; reabsorption of water E. collecting duct; reabsorption of water
Hormonal messages can be generally described as:
A) digital B) all-or-none C) analog D) high-threshold responses