Which of the following statements is true?
A. The pyloric sphincter controls the rate at which chyme enters the small intestine.
B. The colon is the major site of nutrient absorption in the human digestive system.
C. A person cannot live for more than a few weeks without his or her gallbladder.
D. The esophagus is the muscular valve that connects the stomach to the small intestine.
Answer: A
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A copy of a specific gene situated in a given locus on a chromosome is called a(n):
a. allele b. codon c. chromatin d. intron e. exon
Which substance is not found in a chylomicron?
a. phospholipid b. protein c. triglyceride d. water-soluble vitamins e. cholesterol
Carcinomas originate in epithelial tissues, whereas sarcomas originate in:
a. bone marrow. b. glandular tissues. c. connective tissues. d. neuroendocrine tissues.
Nutrition misinformation exists for all of the following reasons EXCEPT:
a. truth in advertising laws are strictly enforced. b. profit. c. personal beliefs and convictions. d. freedom of speech.