Eukaryotic sexual life cycles show tremendous variation. Of the following elements, which do all sexual life cycles have in common?

I. Alternation of generations
II. Meiosis
III. Fertilization
IV. Gametes
V. Spores
A) I, II, and IV
B) II, III, and IV
C) II, IV, and V
D) I, II, III, IV, and V


B

Biology & Microbiology

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Epithelial cells are more likely to become

cancerous than other tissue cells because epithelial cells

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A DNA mutation that gives a distinguishable phenotype for a chromosome or gene is a

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