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Evolution MC
Test Description: Multiple Choice question practice for Evolution test
Instructions: Answer all questions to get your test result.
1) The loss of habitat in a forest region has caused some plant species to become extinct, while others survive. The process by which some plant species survive and others do not in a changing environment is best explained by
A
law of segregation
B
alternation of generations
C
natural selection
D
biological magnification
2) Which of the following is most likely a vestigial structure?
A
flower color
B
the beak of a finch
C
the fossil of a snail
D
the human tailbone
3) The tortoises on the Galapagos Islands are thought to share a common ancestry, although they look very different. Which of the following statements gives the best explanation for the different shell types of these tortoises?
A
In order to prevent competition, the tortoises evolved differently.
B
The different adaptations are the result of random, spontaneous mutations.
C
The different adaptations are a result of the need to attract different mates.
D
As they adapted to areas with different food sources, different shell shapes evolved.
4) How are certain molecules used to determine how long it has been since two species shared a common ancestor?
A
The sequence of amino acids that make up their proteins become less similar.
B
Their levels of carbon-14 become more similar.
C
The sequence of amino acids that make up their proteins become more similar.
D
Their levels of carbon-14 become less similar.
5) Humans, bats, cats, and whales all have the same bones making up their forelimbs. These bones can be called:
A
analogous structures
B
vestigial structures
C
homologous structures
D
fossil structures
6) Humans, bats, cats, and whales all have the same bones making up their forelimbs. This is evidence that all of these organism:
A
all grow at different rates
B
evolved instantaneously
C
share a common ancestor
D
live for a long time
7) A population of salamanders that live in a river require clear, fresh water to survive. A flood causes tons of sediment (dirt, mud) to be suspended in the river. Initially, which of these is most likely to happen to the salamander population?
A
The salamanders will adapt to life on land.
B
The salamanders will adapt to living in the muddy water.
C
The salamanders will move to another river.
D
The salamanders will decrease in number because of the water quality.
8) The gopher snake uses its glottis to produce a hiss that sounds similar to a rattlesnake’s rattle. What is the most likely reason a gopher snake would do this?
A
to attract a mate
B
to confuse predators
C
to attract a prey
D
to increase adrenaline flow
9) The papaya mealybug is a pest that poses a threat to many tropical plants. What would happen to the papaya mealybug if none of the tropical plants reproduced?
A
The papaya mealybug species would continue to thrive
B
The papaya mealybug species would mutate
C
The papaya mealybug species would increase in size
D
The papaya mealybug species would become extinct
10) A group of mice becomes separated by the formation of a river. Over time, the northern mice became smaller and white, while the southern mice became larger and browner. This is an example of
A
gigantism
B
industrial melanism
C
divergence
D
homology
11) The most likely explanation for the fact that the Hawaiian Islands did not have any land mammals until humans arrived is that:
A
all of the mammals on these islands died out before people came.
B
life on these islands has evolved largely independent from the rest of the world.
C
the environment was unsuitable for mammals on these islands.
D
None of the statements are correct.
12) Any variation that can help an organism survive in its environment is called a(n)
A
vestigial structure
B
competition
C
characteristic
D
adaptation
*select an answer for all questions
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