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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?
divergence
The papaya mealybug species would become extinct
share a common ancestor
The sequence of amino acids that make up their proteins become less similar.
The salamanders will decrease in number because of the water quality.
homologous structures
to confuse predators
the human tailbone
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?
divergence
The papaya mealybug species would become extinct
share a common ancestor
The sequence of amino acids that make up their proteins become less similar.
The salamanders will decrease in number because of the water quality.
homologous structures
to confuse predators
the human tailbone
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
divergence
The papaya mealybug species would become extinct
share a common ancestor
The sequence of amino acids that make up their proteins become less similar.
The salamanders will decrease in number because of the water quality.
homologous structures
to confuse predators
the human tailbone
Humans, bats, cats, and whales all have the same bones making up their forelimbs. This is evidence that all of these organism:
divergence
The papaya mealybug species would become extinct
share a common ancestor
The sequence of amino acids that make up their proteins become less similar.
The salamanders will decrease in number because of the water quality.
homologous structures
to confuse predators
the human tailbone
Humans, bats, cats, and whales all have the same bones making up their forelimbs. These bones can be called:
divergence
The papaya mealybug species would become extinct
share a common ancestor
The sequence of amino acids that make up their proteins become less similar.
The salamanders will decrease in number because of the water quality.
homologous structures
to confuse predators
the human tailbone
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?
divergence
The papaya mealybug species would become extinct
share a common ancestor
The sequence of amino acids that make up their proteins become less similar.
The salamanders will decrease in number because of the water quality.
homologous structures
to confuse predators
the human tailbone
Which of the following is most likely a vestigial structure?
divergence
The papaya mealybug species would become extinct
share a common ancestor
The sequence of amino acids that make up their proteins become less similar.
The salamanders will decrease in number because of the water quality.
homologous structures
to confuse predators
the human tailbone
How are certain molecules used to determine how long it has been since two species shared a common ancestor?
divergence
The papaya mealybug species would become extinct
share a common ancestor
The sequence of amino acids that make up their proteins become less similar.
The salamanders will decrease in number because of the water quality.
homologous structures
to confuse predators
the human tailbone
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