Molecules of DNA are composed of long chains of
A.) amino aicds
B.) fatty acids
C.) monosaccharides
D.) nucleotides
Ans: D.) nucleotides
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In a chemical reaction, glyceraldehyde-3-phosphate + NAD+ yields 1,3-bisphosphoglycerate + NADH. In this reaction, what happened to NAD+?
A. It was oxidized to form NADH B. It was reduced to form NADH C. It was activated to form NADH D. it served as an enzyme to catalyze the reaction, and at the end of the reaction formed NADH Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about oxidation and reduction chemical reactions? What other information is related to the question? Choose Answer Do you have all the information needed to determine the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Some clones of the original immune cells are
__________ cells, long-lived B and T cells reserved for future encounters with the antigen. Fill in the blank(s) with the appropriate word(s).
A clam is a(n)
A) arthropod. B) mollusk. C) echinoderm. D) chordate. E) arachnid.
In addition to the true amoebas (Rhizopoda), another group with pseudopods are the
A. Euglenozoa. B. Diplomonads. C. Stramenopila. D. Radiolarians. E. Alveolata.