The process in which recipient bacterial cells acquire genes from cell-to-cell contact with other cells is called

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important

Which best describes how sediment forms? loose material is cemented by pressure. erosion breaks down rock and other material. molten rock cools above earth's surface. chemical changes cause sediment to compact together.

An organism lives in a container with very little oxygen. it produces ethanol and carbon dioxide as waste products. which process does it use to produce most of its atp molecules? a. lactic acid fermentation b. glycolysis c. electron transport chains d. alcohol fermentation