Choose the best definition of a community.

A. all of the organisms plus the nonliving habitat
B. the dominant organisms in an area
C. all of the organisms in an area
D. living organisms and soil


Answer: C

Biology & Microbiology

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Who demonstrated that phage genetic material is DNA and not protein?  

A.  Hershey and Chase B.  Chargaff C.  Franklin D.  Watson and Crick E.  Avery, MacLeod, and McCarty

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Primary treatment of sewage involves the use of which type of process?

A. Physical/chemical removal of insoluble particulate materials B. Biological removal of inorganic nutrients C. Virus removal/inactivation D. Biological removal of dissolved organic matter

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Which of the following terms is most closely associated with ultimate causes of behavior?

a. physiological changes b. genetic causes c. evolutionary pressures d. developmental processes e. climatic pressures

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In species with direct development, fewer offspring are produced, but a higher proportion survives to adulthood

Indicate whether the statement is true or false

Biology & Microbiology