During childhood, growth and development of the brain PRIMARILY occurs by increasing
A) neuron size only.
B) neuron numbers only.
C) number of dendrites and synapses only.
D) neuron numbers and neuron size.
E) neuron size and number of dendrites and synapses.
E) neuron size and number of dendrites and synapses.
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Lungs are to the respiratory system as the spleen is to the
A) lymphatic system. B) urinary system. C) digestive system. D) cardiovascular system. E) muscular system.
A synonym for caudal is ___________________.
Fill in the blank(s) with the appropriate word(s).
In which region(s) of the GI tract do peristaltic contractions occur?
A. the small intestine B. the large intestine C. the stomach D. the esophagus E. All of these options are correct.
Isotopes of the same element have
A. different numbers of protons and electrons. B. no mass number. C. the same atomic number but differ in their mass numbers. D. the same mass number. E. the same number of neutrons but different numbers of protons.