A food ball moves through the esophagus by ________
A) peristalsis
B) gastric juice
C) mastication
D) regurgitation
A
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A cell in prophase I of meiosis has ______________ as much DNA as each of the daughter cells following cytokinesis of meiosis II
A. twice B. half C. one-quarter D. four times
Which macromolecule did the majority of scientists favor as the "first" to be found in protobionts?
A. DNA. B. RNA. C. Amino acids. D. Proteins.
"Glycogenolysis" refers to the state where
A. glucose levels are increased in the blood through the breakdown of glycogen. B. glucose levels are increased in the blood through the synthesis of glycogen. C. glucose levels are decreased in the blood through the breakdown of glycogen. D. glucose levels are decreased in the blood through the synthesis of glycogen. E. glucose levels are increased in the blood as a result of lipolysis.
Bony fish evolved ________ to help keep them afloat.
Fill in the blank(s) with the appropriate word(s).