The branching structures that, together with the cell body, are sensitive to chemical, mechanical, or electrical stimulation are called
A) axons.
B) Nissl bodies.
C) synapses.
D) dendrites.
E) neurofibrils.
D) dendrites.
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A k-selected species
a. produces a large number of young. b. provides minimal nourishment to its offspring. c. has low offspring survival. d. demonstrates high parental involvement.
Regarding its role as a neurotransmitter in the CNS, norepinephrineA) is secreted by brainstem neurons in response to sensory stimulation.B) amplifies weak sensory signals and dampens strong ones so that more information can reach conscious levels.C) is important for maintaining directed attention.D) is completely absent from the CNS, it is only used in the PNS.E) is only important for processing visual stimuli.
What will be an ideal response?
Mary noticed a large, brown spot on her skin. She has been playing tennis in the sun for several years without sun protection
She reported the discovery to a friend, who told her to apply the ABCD rule to determine whether or not she had malignant melanoma. Her friend told her that if her answer was "no" to the questions that were asked by the ABCD rule, she had nothing to worry about. What is the ABCD rule and should she ignore the spot if her answers are negative? What will be an ideal response
At the urinary pole of the renal corpuscle, the parietal layer of the capsule gives rise to what structure?
a) renal tubule b) vasa recta c) glomerulus d) efferent arteriole