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All living organisms are composed of a. only one cell. b. at least 100 cells. c. at least three cells. d. one or more cells.

25. what does meiosis create? haploids or diploid? somatic cells or gametes?

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils