In general, plants have evolved from ________ to ________
A) no fruit; no spores
B) diploid; haploid life cycle
C) seedless; seed
D) fruit; seedless
E) seed; seedless
C
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Which eon would contain rocks with no fossils?
A. Archean B. Hadean C. Proterozoic D. Phanerozoic
Plants perform photosynthesis by using the
energy of ____ to power production of sugars from ____ and ____ molecules.
a. organic molecules; oxygen; water b. organic molecules; carbon dioxide; water c. sunlight; carbon dioxide and oxygen; water d. sunlight; oxygen; water e. sunlight; carbon dioxide; water
Which statement about germination is false?
A) The germination of a seed represents the beginning of life. B) Germination usually begins when a seed takes up water. C) A hydrated seed expands, rupturing its seed coat. D) Germination usually takes place after a period of dormancy.
Broad-spectrum drugs that disrupt the body's normal flora often cause
A. nephrotoxicity. B. superinfections. C. drug toxicity. D. allergic reactions. E. All of these choices are correct.