What is the purpose of the bicarbonate solution released by the pancreas into the small intestine?
What will be an ideal response?
The purpose of the bicarbonate solution is to neutralize the acidic chyme as it leaves the stomach. The small intestine lacks the protective layer of mucus found in the stomach and cannot withstand the acids for long. Also, the pancreatic enzymes work in an alkaline environment only, so the stomach acid must be neutralized.
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The ovary is most often located in the _____
A) stamen B) carpel C) petals D) sepals E) receptacle
Which evolutionary process involves the slow addition of allelic variation that increases the hereditary diversity of populations, ultimately leading to evolutionary change?
A) natural selection B) migration C) mutation D) random genetic drift E) population genetics
The chemical behavior of an atom is determined by most directly by the:a
atomic number. b. atomic weight. c. number of energy levels. d. number of valence electrons. e. number of neutrons.
The Asian elephant has the scientific name Elephas maximus. The term Elephas is the
A) species. B) genus. C) kingdom. D) order. E) family.