14. When the oxygen catastrophe occurred, which organisms died? A. aerobic
B. facultative bacteria
C. anaerobic
D. all organisms

How does buring fossil fuels impact does carbon cycle? what large impact does this have on the envirnment?

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?

How can active reading strategies you? o a. they can you get into better physical shape. o b. they can you read fewer science articles. o c. they can you understand what you read. o d. they can you avoid reading altogether.