Within a single neuron, what is the direction of an impulse?
a. dendrite ? axon ? cell body
b. axon ? dendrite ? cell body
c. dendrite ? cell body ? axon
d. cell body ? dendrite ? axon
e. cell body ? axon ? dendrite
c
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Suppose a tree possesses abundant chlorophyll a pigments. Why would it benefit from also producing other types of pigments?
What will be an ideal response?
Which of the following is an action of ricin?
a. binding to carbohydrates on the plasma membrane b. removal of an adenine base from rRNA c. ribosome inactivation d. none of these are actions of ricin e. all of these (except d) are actions of ricin
Native peoples traditionally use Brazil nuts to treat stomach ache, inflammation, hypersensitivity, and hepatitis. Consequently, a scientist should be interested in promoting _____
A) better education for the native peoples so that they will overcome their old ways B) clear-cutting forests containing Brazil nut trees to make way for crops with proven medical benefits C) an increase in the living standards of the native peoples so that they might be able to purchase modern pharmaceuticals D) the evaluation of Brazil nut chemicals for use as potential drugs
Which of the following, according to the Bloomberg graphs I showed, actually contributes to cooling the Earth?
What will be an ideal response?