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
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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
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
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
In species with direct development, fewer offspring are produced, but a higher proportion survives to adulthood
Indicate whether the statement is true or false