Is the earth getting larger and wider when plates drift away from each other? explain

Apopulation of black bears depends on salmon from a stream for food. if a drought causes the stream to run dry one year, how will this likely impact the black bear population?

Drag each tile to the correct location. match each trait that an organism displays to a reproductive strategy.

Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome