The large, double-stranded, helical molecule that contains instructions for assembling a living organism from simpler
molecules is ____.
a. RNA
b. DNA
c. ATP
d. Protein
e. NADPH
b
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The phosphorylation of glucose during glycolysis serves to:
What will be an ideal response?
The most severe mass extinction occurred at the end of the Permian Period
Indicate whether the statement is true or false.
How do corals living in deep, cold water obtain their energy?
a. by feeding on plankton b. through mutualism with protists c. through solar radiation d. by extracting nitrogen from plants
One example of a simple reflex arc involves the
a. contraction of a muscle when it is stretched. b. conscious message to move part of the body. c. receptor, the brain, and the effector. d. muscle action in a salute when a noncommissioned combatant sees an officer. e. contraction of an antagonistic muscle when its opposite muscle relaxes.