_____ is(are) a good source of omega-3 fatty acids that can reduce the risk of heart disease
a. Oatmeal c. Fish
b. Legumes d. Corn syrup
C
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The oldest fossils look as though they were formed by organisms that resemble modern
a. sponges. b. red algae. c. jellyfish. d. amebas. e. prokaryotes.
____ glands lack ducts
a. Endocrine b. Muscular c. Nervous d. Exocrine e. Connective
What is the sequence of events in a typical eukaryotic cell cycle?
A. G1 to S to G2 to cytokinesis to mitosis B. S to G1 to G2 to mitosis to cytokinesis C. G1 to G2 to mitosis to S to cytokinesis D. G1 to S to G2 to mitosis to cytokinesis E. G1 to G2 to S to mitosis to cytokinesis
You must decide how to classify a newly discovered organism, but you have only limited test materials to help you make your decision. Chemical A glows if a nuclear envelope is present. Chemical B turns blue in the presence of chloroplasts
Chemical C fizzes when mixed with chitin. After testing the organism, you find out that it glows, doesn't turn blue, and fizzes. You classify this organism as a A) diatom. B) bacterium. C) slime mold. D) fungus. E) zooflagellate.