________ is contained in pancreatic juice to neutralize the acidity of chyme from the stomach.
A. Sodium bicarbonate
B. Pancreatic amylase
C. Trypsin
D. Bile
Answer: A
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A wooded area is converted to a housing development and strip mall. Predict and briefly describe three (3) ways this change in land use could affect atmospheric carbon dioxide levels.
What will be an ideal response?
In most cases, cancer-causing mutations ____
a. accumulate over a number of years b. accumulate very quickly within a single cell c. metastasize within a short time d. must all occur on the q arm of a chromosome e. occur during the G0 phase of the cell cycle
The four main catagories of large biological molecules present in living systems are
a. Proteins, DNA, RNA, steroids b. Monosaccharides, lipids, polysaccharides, and proteins c. Nucleic acids, carbohydrates, monosaccharides, and proteins d. RNA, DNA, proteins, and carbohydrates e. Proteins, nucleic acids, polysaccharides, and lipids
What is a defining feature of a eukaryotic cell?
A. Cell wall surrounding the cell B. Plasma membrane external to the cell wall C. Internal membranes surrounding organelles D. Ribosomes in the cytoplasm E. Large vacuole for storage