Which neurotransmitter stimulates muscle cells to contract but slows contractions in the heart?
a. acetylcholine
b. GABA
c. serotonin
d. endorphin
a
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If a neurotransmitter key opens the receptor's lock, then the neurotransmitter is said to be:
A. at the threshold B. excitatory C. positively charged D. at an action potential
What changes are likely happening in an 11-year-old's brain that were not happening before?
What will be an ideal response?
According to your text, one of the key brain regions in explicit memory is a limbic system structure called the ________.
a. hippocampus b. hypothalamus c. amygdala d. thalamus
Diseases carried by recessive genes are inherited when a child __________.
A. inherits two recessive genes, one from each parent B. inherits two dominant genes, one from each parent C. inherits a dominant gene from one parent and a recessive gene from the other parent D. doesn't inherit any genes from one parent