In the United States, approximately ________ people are currently infected with HIV/AIDS
A) 65 million
B) 2.3 million
C) 500,000
D) 1.2 million
D
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Abdominal fat stored primarily around internal organs is known as _____ fat.
A. subcutaneous B. visceral C. retroperitoneal D. saturated E. essential
Which of the following statements explains why neurons that fire together wire together? Choose the correct option
A) A synapse formed by a presynaptic axon is weakened when the presynaptic axon is active at the same time that the postsynaptic neuron is weakly activated by other inputs. B) A synapse formed by a presynaptic axon is strengthened when the presynaptic axon is active at the same time that the postsynaptic neuron is weakly activated by other inputs. C) A synapse formed by a presynaptic axon is strengthened when the presynaptic axon is active at the same time that the postsynaptic neuron is strongly activated by other inputs. D) A synapse formed by a presynaptic axon is weakened when the presynaptic axon is active at the same time that the postsynaptic neuron is strongly activated by other inputs.
Which white blood cells are most involved in carrying out the functions of the immune system?
a. basophils b. monocytes c. lymphocytes d. eosinophils
Which of the following is NOT one of the modifiable risk factors for heart disease?
a. heredity b. smoking c. inactivity d. elevated blood cholesterol e. hypertension