Which bases below are purines?
1. adenine
2. cytosine
3. guanine
4. thymine
5. uracil
A) 2, 4, and 5
B) 1, 3, and 5
C) 1 and 3
D) 1 and 2
E) 2 and
C) 1 and 3
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Where are the upper motor neurons that control skeletal muscles found?
A. The posterior horn of the spinal cord B. The anterior horn of the spinal cord C. The motor association cortex of the cerebrum D. The postcentral gyrus of the cerebrum E. The precentral gyrus of the cerebrum
The cardiac output is equal to
a. (EDV - ESV) x HR b. heart rate x EDV c. the difference between the stroke volume at rest and the stroke volume during exercise d. the stroke volume minus the ESV e. heart rate x blood pressure
A camera mounted on a _____ microscope took this photo of a cut piece of cork
Fill in the blank(s) with correct word
Which hormone is primarily produced by the corpus luteum?
A) follicle-stimulating hormone (FSH) B) progesterone C) testosterone D) androgens E) luteinizing hormone (LH)