Small plants and animals rely on __________ of
material through their body. Fill in the blank(s) with the appropriate word(s).
Answer: diffusion
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The point at which two organisms diverged from a common ancestor
A. can be determined by comparing the nucleic acid sequences. B. depends on translational control. C. depends on metabolism. D. is determined on Mac Conkey's media.
Plants with ____ life cycles typically ____
a. annual; lack secondary growth b. biennial; die after one growing season c. perennial; lack secondary growth d. perennial; lack primary growth e. annual; do not reproduce
Scientists are always thinking about ways to
improve experimental design. In the text's potato chip experiment, which of these might do so? a. show a different movie b. exclude teenagers as group members c. collect uneaten chip remains and weigh them for both groups d. provide free drinks e. use a smaller theater
Which best describes a catabolic reaction?
a. It involves the expenditure of energy. b. It involves the anabolic production of complex molecules. c. It involves the breakdown of life sustaining processes within cells. d. It involves the breakdown of large organic molecules to simple building blocks. e. It involves the building up of complex organic molecules from simple building blocks.