Evolution

Which types of organisms developed first due to the early environmental conditions on Earth?

• prokaryotic and aerobic
• prokaryotic and anaerobic
• eukaryotic and aerobic     
• eukaryotic and aerobic     

A large population of cockroaches was sprayed with an insecticide. A few of the cockroaches survived and produced a population of cockroaches that was resistant to this spray. What can best be inferred from this example?

• A Individuals with favorable variations survive and reproduce.
• B The environment has no effect on the survival of an organism.
• C Insecticides cause mutations that are passed on to the next generation.
• D A species will adapt no matter what the environment.

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Which will most likely cause variations to occur within a species?

• competition
• mutation
• mutualism
• predation

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In which populations does genetic drift most often occur?

• in small populations
• in large populations
• in marine populations
• in terrestrial populations

Species A and B share similarities in DNA sequences. What would this suggest about their evolutionary relationship?

• a. Species A developed before species B.
• b. Species A and B share a recent common ancestor.
• c. Species A and B are unrelated.
• d. Species B developed before Species A.

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The diagram represents the same field of mice bunted by a hawk over a period of three months. The overall changes in the population of mice can be explained best by which of the following?

•  natural selection
• reproduction
• succession
• mouse extinction

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NGSS.MS-LS2-1

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A researcher sprays a new pesticide on thousands of insects of the same species that live in a large field. A few of the insects survive.  What can be concluded by the researcher?

• a. The species of insects will likely become resistant to the pesticide.
• b. The ideal interval between the first and second applications of the pesticide should be increased.
• c. The pesticide has no effect on the species.
• d. The concentration of the pesticide was too weak.

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NGSS.MS-LS2-4

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This diagram represents the bone structures of the front limbs of four different animals.  What do the similarities of the structures suggest about these organisms?

• A They grow at the same rate.
• B  They evolved from a common ancestor
• C They live for the same length of time.
• D They live in the same environment.

Natural selection is described as “survival of the fittest.” Organisms considered fit will survive to accomplish which?

• migrate to other areas
• reproduce and pass on genes
• have a larger territory         
• have more genetic mutations

Which fact provides the best evidence for the theory that mitochondria and chloroplasts evolved from free-living cells?

• A.  Mitochondria and chloroplasts are about the same size as bacteria. 
• B.  Mitochondria and chloroplasts carry their own DNA.
• C.  Mitochondria and chloroplasts perform the same function.     
• D.  Mitochondria and chloroplasts look like bacteria.

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