Evolution Review

What is an example of a question that Lamarck would ask about evolution?

• How can a giraffe acquire a long neck in their lifetime and pass it down to their offspring?

• What causes variation in giraffes that allows some giraffes to be better adapted to the environment and reproduce?

• How do giraffes with longer necks pass on this trait to their offspring, creating more long neck giraffes over time?

• How did giraffes as a species evolve a longer and longer neck over time?

According to Darwin’s theory of natural selection, individuals who survive ____________.

• possess adaptations they acquired through use

• lack competition within the species

• inherit adaptations that maximize their fitness in their environment

• were chosen by plant and animal breeders

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Choose the correct statement about mutations and there importance to evolution.

• Mutations that occur in sex cells will always end in death and will not enter the gene pool.

• All mutations in somatic cells will continue to be passed down over generations even if they are not beneficial to a population.

• All mutations are harmful and any organism with one will be selected against leaving everyone else to survive.

• Mutations provide variation in a population which leads to natural selection when a population is under environmental pressures.

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What is the best description for why the peppered moth population evolved after the industrial revolution?

• The white colored moths choose to adapt to the dark colored environment and changed colors to black.

• The white colored moths blended in with the newly polluted dark colored background and were better able to survive in the new environment.

• The white moths must have gotten some type of genetic disease and died out.

• The industrial revolution created pollution which changed the trees that the peppered moths lived in from white to dark which made the black colored moth better adapted.

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Which primates are most closely related and why?

• Lemur and the Baboon they have the most amino acids in common

• Lemur and Chimp they have the least amino acids in common.

• Gorilla and Chimp they have the most amino acids in common.

• Gorilla and Baboon they have the least number of amino acids in common.

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Choose the description that is correct about the pictures here.

• Picture A represents homologous structures that have similar bones but different functions.

• Picture B represents homologous structures that have similar bones but different functions.

• Picture A represents analogous structures that share a common ancestor.

• Picture B represents analogous structures that have different bones, but have the same function.

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Bacteria have evolved to be resistant to antibiotics and continue to increase their resistance as a population over time. Pick the best explanation for why this happened.

• A mutation caused a bacteria to become resistant and over time those bacteria survived and passed on their resistance to their offspring.

• The bacteria had to become resistant to the antibiotics to survive so overtime they acquired this trait.

• The antibiotics caused the bacteria to develop an immune response which was inherited.

• The bacteria have joined together and learned how to fight off the antibiotics.

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Which argument best supports the graph about the size of beaks before and after a drought?

• Birds with a small beak size seem to have been naturally selected after the drought.

• Birds with the largest beak size seem to have been naturally selected after the drought.

• Bird with a beak size of a 9-11 cm seem to have been naturally selected after the drought.

• Birds with a beak size of 7-9 cm seem to have been naturally selected after the drought.

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In a population where the gene frequency shifts by random events, like forest fires, the mechanism of evolution at work is which of the following?

• Natural selection

• Mutations

• Genetic drift

• Bottleneck effect

The desert is characterized by very little rain fall. Less then 25 centimeters a year will fall. During the day many desserts can get extremely hot. There is also no tree cover to create shade for organisms. Which of the following best shows an adaptation of an animal to the desert?

• A jack rabbit's short fur

• A tiger's stripe pattern

• A giraffe's long neck

• A gecko's green camouflage

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