Bio Chapter 18 Quiz
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| Which scientific concept did Charles Darwin and Alfred Wallace independently discover? mutation natural selection overbreeding sexual reproduction | natural selection
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| Which of the following situations will lead to natural selection? the seeds of two plants land near each other and one grows larger than the other two types of fish eat the same food, and one can gather it better male lions compete for mating all | all of the above
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| Which description is an example of a phenotype? a certain duck has a blue beak a mutation occurred to a flower most cheetahs live solitary lives both a and c | both a and c
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| Which situation is most likely an example of convergent evolution? squid and humans have similar eye structure worms and snakes both move without legs some bats and birds have flying wings all of the above | all of the above
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| Which situation would most likely lead to allopatric speciation? flood causes the formation of a new lake a storm causes several large trees to fall down a mutation causes a new trait to develop injury causes an organism to look for a new food source | flood causes the formation of a new lake
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| What is the main difference between dispersal and vicariance? | one involves the movement of the organism, and the other involves a change in the environment
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| Which variable increases the likelihood of allopatric speciation taking place more quickly? lower rate of mutation longer distance between divided groups increased instances of hybrid formation equivalent numbers of individuals in each population | longer distance between divided groups
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| What is the main difference between autopolyploid and allopolyploid? number of chromosomes functionality of chromosomes source of extra chromosomes number of mutations in extra chromosomes | source of the extra chromosomes
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| Which reproductive combination produces hybrids? when individuals of the same species in different geographical areas reproduce when members of closely related species reproduce when offspring of same parents reproduce | when members of closely related species reproduce
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| Which condition is the basis for a species to be reproductively isolated from other members? does not share habitat with related species does not exist out of a single habitat does not exchange genetic info with other species | does not exchange genetic info with other species
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| Which situation is not an example of prezygotic barrier? two species of turtles breed at different times of the year two species of insects produce infertile offspring two species of flowers attract different pollinators | two species of insects produce infertile offspring
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| Which term is used to describe the continued divergence of species based on the low fitness of hybrid offspring? reinforcement fusion stability punctuated equilibrium | reinforcement
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