Polymers of polysaccharides, fats, and proteins are all synthesized from monomers by
A) connecting monosaccharides together.
B) the formation of disulfide bridges between monomers.
C) ionic bonding of the monomers.
D) the addition of water to each monomer.
E) the removal of water
Ans: E) the removal of water
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The fossil record is a testament to extinct fauna no longer present on Earth. Certain areas of the planet have always had high species diversity (evidence from fossils and catalogs of current species diversity)
What two processes likely contribute to the patterns of animal diversity we see through time? A. evolutionary innovation and the appearance of new land masses over time B. evolutionary innovation and changes in atmospheric oxygen C. evolutionary innovation and extinction events (both local and global) D. evolutionary innovation and volcanic eruptions
A molecule of water in the middle of a chunk of ice will usually have ____ hydrogen bonds with other water
molecules.
a. 2 b. 3 c. 3.4 d. 4 e. 6
If only one twin has a trait, the twins are ____________________ for that trait.Fill in the blank(s) with the appropriate word(s)
In the experimental evaluation of a new drug, what is the purpose of a placebo?
a. A placebo increases the sample size. b. A placebo prevents errors in recording of the data. c. A placebo removes the bias of the physician in charge of the experiment. d. A placebo removes the potential psychological bias of the patient in the study. e. A placebo prevents sampling errors from compromising the results of the experiment