Melanin production can be influenced by
A. hormones.
B. pregnancy.
C. exposure to sunlight.
D. genetics.
E. All of the choices are correct.
Answer: E
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Match the structure with the appropriate description.A. Formed when the right and left vertebral arteries uniteB. Supplies blood to the face, nose, and mouthC. Terminates by forming the middle cerebral arteriesD. Supplies blood to the arm and shoulder regionsE. Sense organs that monitor blood pressureBasilar artery
Fill in the blank(s) with the appropriate word(s).
Abdominal pain from digestive organs (e.g., from a stomach ulcer) would be conveyed to the brain by way of somatosensory pathways.
Answer the following statement true (T) or false (F)
Myxedema is characterized by low metabolic rate, sluggishness, and sleepiness.
Answer the following statement true (T) or false (F)
During amphimixis,
A) sperm become capacitated. B) the zygote is formed with 46 chromosomes. C) the male and female pronuclei fuse. D) meiosis occurs. E) gametes are formed.