# Bio Final Study

Evolution is biology's overarching theme because evolution

a. explains how organisms become adapted to their environment through differential reproductive success of varying individuals
B. all of the answers are correct
c. explains why distantly related organisms sometimes resemble each other
d. explains the unity and diversity of life
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Evolution is biology's overarching theme because evolution

a. explains how organisms become adapted to their environment through differential reproductive success of varying individuals
B. all of the answers are correct
c. explains why distantly related organisms sometimes resemble each other
d. explains the unity and diversity of life
Apple on tree ripens ripe apple produces ethylene ethylene signals neighboring apples to ripen neighbor apples produce more ethylene more apples ripen. The above process is an example of which of the following?

a. chemical cycling
b. negative feedback regulation
c. emergent properties
D. positive feedback regulation
Which of the following statements best distinguishes hypotheses from theories in science?

A. hypotheses are usually relatively narrow in scope, theories have broad explanatory power
b. hypotheses and theories are basically the same thing
c. theories are hypotheses that have been proved
d. hypotheses are guesses; theories are correct answers
Following a scientific method, which of the following is the correct order of steps?

a. Observation → Hypothesis → Experiment → Communicate results → Analysis → Conclusion
B. Observation → Hypothesis → Experiment → Analysis → Conclusion → Communicate results
c. Experiment → Hypothesis → Observation → Analysis → Conclusion → Communicate results
d. Observation → Analysis → Hypothesis → Conclusion → Communicate results → Experiment
Which of the following best describes a controlled experiment?

a. An experiment repeated many times to ensure that the results are accurate
B. An experiment includes at least two groups, one of which does not receive the experimental treatment
c. An experiment that includes one group for which the scientist controls all variables
d. An experiment that includes at least two groups, one differing from the other by two or more variables