When is the second meiotic division completed in a female gamete?
A. It occurs when a mature follicle develops
B. When 4 cells of equal size are produced
C. Shortly after ovulation
D. When the first polar body is discarded
E. Immediately after fertilization
Answer: E
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When you eat a spicy pepper, such as a jalepeño, why do you perceive heat in your mouth?
A. Friction while chewing activates thermoreceptors. B. A chemical within the jalepeño acts as a stimulus for thermoreceptors. C. Chemoreceptors can activate heat sensing parts of the brain. D. The breakdown of chemicals within the pepper causes exothermic reactions in the mouth. E. All of the answer choices are correct.
________ is any molecule that binds to another molecule.
Fill in the blank(s) with the appropriate word(s).
This part of the brain is responsible for autonomic motor functions such as respiration, blood pressure, and heart rate, as well as for regulating muscle tone.
A. Sensory component of the reticular formation B. Prefrontal cortex C. Hypothalamus D. Motor component of the reticular formation E. Amygdala
Which of the following is NOT a glial cell of the CNS?
A. Oligodendrocytes B. Ependymal cells C. Astrocytes D. Satellite cells