Consider a cell that has three pairs of chromosomes. What are the chances that a gamete produced from this cell will contain only maternal chromosomes?

Most of the fossils found in virginia are in the coastal plain, valley, ridge, and appalachian plateau regions, best suggesting that these geographic provinces a) were once covered by seawater. b) are the oldest parts of virginia. c) have a great deal of karst topography. d) have large amounts of sedimentary rock.

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi

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