What is biology?

a) The study of life
b) The study of the environment
c) The study of DNA
d) The study of genetics
e) The study of the earth

29. Which of the following groups would contain the largest number of organisms?

a) class
b) order
c) species
d) kingdom
e) family

30. All living organisms _____________.

a) reproduce
b) evolve
c) respond to environmental stimuli
d) have all three characteristics

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