An excitatory postsynaptic potential ____
a. is cancelled out by an inhibitory postsynaptic potential
b. has a hyperpolarizing effect
c. will drive the membrane away from its potential
d. is summed with an inhibitory postsynaptic potential at the input zone of a neuron
e. works so that only one impulse can be received at a time
ANSWER: d
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A bobcat is feeding on a white-tailed deer. It first eats the liver, which is rich in stored sugars. In what form would sugar be stored in the deer's liver?
A. Glucose B. Maltose C. Glycogen D. Amylose E. Cellulose
Based on what you know of ATP's chemistry, which of the following might be most likely to have possible similar uses in energy-management processes?
A. lysine (amino acid) B. phospholipids C. guanine nucleotide D. steroids E. potassium ions (K+)
The tube feet of sea stars are used primarily for ____
a. excretion of excess water b. locomotion c. reproduction d. circulation e. sensation
Suppose you have two departments and have daily data on complaints and number of products they oversee for the departments over two years. In the second year, you increased the number of products under the scope of department #2 by 10. To estimate the effect of this increase in the number of products, you estimate the following regression: Complaintsit = ? + ?1 × Department #2it + ?2 × Year2it + ?3 × Department #2it × Year2it + Uit. In this regression, what is the "diff-in-diff"?
A. ? + ?3 B. ?3 C. ? + ?1 D. ?1 + ?3