Do you think new discoveries will change the way scientists classify and identify organisms? Why or why not? If so, how will
it change?

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?

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules

Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.