The digestive system
A. sends cellular debris to lysosomes.
B. absorbs nutrients in the mouth, pharynx, esophagus and stomach, and releases nutrients in the intestines.
C. ingests food, propels food, mechanically and chemically breaks down food, absorbs nutrients, and defecates the remainder.
D. mechanically and chemically assembles food from absorbed nutrients.
Answer: C
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35) Your blood glucose level has dropped perilously low because you have been starving yourself for a couple of days to lose weight. Your liver, directed by the hormone insulin, converts its last stored glycogen into glucose to get it out into your bloodstream. In this scenario, the liver is the
A) receptor. B) effector. C) control center. D) feedback. E) balance.
Seminal fluid
A. helps create an optimal pH for sperm motility. B. includes fructose which provides energy for sperm. C. helps neutralize the acidic environment of the vagina. D. All apply.
The term ____________ is used to reference the ventral surface of the body.?
Fill in the blank(s) with correct word
What role do the tonsils play in the respiratory system?
A) Tonsils produce mucus which drains into the nasal cavities. B) Tonsils humidify and warm incoming air. C) Tonsils moisten the air entering the respiratory passageways. D) Tonsils protect the body from infection. E) Tonsils sweep contaminated mucus toward the throat.