Organisms with 23 different chromosome pairs can produce gametes with 8 million possible chromosome combinations, an incredible amount of genetic variation. This
many chromosome combinations in the gametes is possible because of which of the
following?
O thousands of different types of DNA base pairs.
O random separation of chromosomes during meiosis.
O mutations that lead to more chromosomes in the gametes.
O crossing-over that occurs during mitosis.

What is the importance of having the us forest service, the bureau of land management, the us fish and wildlife service, and the national park service? to manage land resources for conservation and the development of natural resources to manage land resources for conservation and the development of urban areas to preserve historical landmarks and manage the development of urban areas to preserve historical landmarks and manage the development of rural areas

What is one way intensive agriculture can contribute to climate change? a. tree loss to agriculture increases earth's albedo b. livestock manure absorbs greenhouse gases c. large herds of livestock release greenhouse gases d. fewer trees are available to replenish petroleum stores appex

Chloroplasts and bacteria are in size. a. similar b. at different ends of the size range c. exactly the same d. none of these