Abiologist began studying a population of buildings. in 1998, she found that most of the male frogs croaked, but some did not. a bat species known to prey on male frogs migrated to the area in 2005. the biologist returned to the area in 2008 and repeated population counts of male frogs. the table shows her data. based on the data, which statement is a plausible explanation for the change in the frog population between 2004 and 2008?

C.The bats response to the croaking behavior of male frogs led to selective pressure against the croaking trait in frogs.

Explanation:

This is very easily explained by the dact that the bats that hunted down the frogs were more attracted to those that craoked because the bats had sonars and the sond of the coraking of the male frogs attracted the bats attention and they were more easily spotted, this made the male coraking frogs an easier prey and made the number of croaking frogs to go down, while allowing the non croaking frogs to survive till adulthood and did a selective pressure in favor of the non croaking frogs.

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