The sweetener aspartame is a known excitotoxin. With regard to nerve cells, ingestion of this substance results in chronic nerve stimulation. With your knowledge of action potentials, this toxin must
A) stimulate continual impulses at the cell body.
B) stimulate continual impulses at the dendrite.
C) bind the nodes of Ranvier.
D) block the synaptic cleft.
E) stimulate continual impulses at the presynaptic receptors.
B) stimulate continual impulses at the dendrite.
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Tinea pedis is
A. an infection of scalp hair. B. known as "jock itch." C. known as "athlete's foot." D. a beard infection.
Identify the condition that will result in an increased level of calcium in the blood.
A. inhibition of chondrocytes B. excess osteocyte activity C. excess osteoblast activity D. inhibition of chondroblasts E. excess osteoclast activity Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about bone metabolism and calcium? What other information is related to the question? Choose Answer · Given what you now know, what information is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
A somatic cell from a corn plant normally contains 20 chromosomes. How many sister chromatids would that cell contain during G2 of the cell cycle?
A. 20 B. 10 C. 40 D. 0
Which statement regarding the scientific method is false?
What will be an ideal response?