Synaptic integration means that
a. positive or excitatory stimuli produce an
excitatory postsynaptic potential.
b. the positive and negative ions neutralize
each other.
c. excitatory and inhibitory signals are
summed in a receiving neuron.
d. the adjacent neurons interact so that
excitatory and inhibitory stimuli cancel
each other out.
e. all of these occur
C
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Sponges have been abundant since the Cambrian period, especially in shallow coastal areas
a. True b. False
Ventilation by a relaxed individual is indicated by
a. A. b. B. c. C. d. D. e. E.
An enzyme that starts the Calvin cycle reactions by catalyzing attachment of the carbon atom from CO2 to RuBP.
What will be an ideal response?
Which statement is not true about chronic persistent viral infections?
A) May involve integration of the virus into the host cell DNA to form a provirus. B) May involve periods of flare-up where the virus is actively replicating alternating with periods of dormancy. C) Small numbers of virions may be produced and released from host cells during the quiet periods. D) The immune system fails to clear the infection. E) A period of quiet infection where the host is asymptomatic is followed by a period of active viral replication.