Which of the following is the primary site of nutrient absorption in the mammalian digestive system?

A. pharynx
B. stomach
C. small intestine
D. large intestine
E. pancreas


C. small intestine

Biology & Microbiology

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The cycle in which lactate is removed from muscle tissue and returned to the liver to produce glucose is called

A) gluconeogenesis. B) glycolysis. C) fermentation. D) the Calvin cycle. E) the pyruvate recovery cycle.

Biology & Microbiology

At sea level, what percentage of the air we breathe is oxygen?

a. 21% b. 30% c. 50% d. 79% e. 100%

Biology & Microbiology

The exchange of genetic material between nonsister chromatids of a homologous pair in meiosis is called ________

Fill in the blank(s) with correct word

Biology & Microbiology

The human population on Earth is expected to reach 9.7 billion people by

A) 2015. B) 2050. C) 2093. D) 3150.

Biology & Microbiology