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Atrazine is one of the most widely used herbicides throughoutthe world. Some studies have shown that the chemical has affectedthe sexual development of frogs, most notably, leopard frogs (Rana pipiens).femalemaleOne study suggested that male tadpoles exposed to the herbicide develop into female frogs. These mutated female frogs, accordingto the study, have the ability to reproduce with other males. However, the mutated frogs can only produce male offspring.This case demonstrates howA. the activities of organisms can change the environments in which they live.OB. chemicals introduced to the environment by humans affect only the organisms they were designed to affect.OC. factors in the environment can change the characteristics of organisms.D. chemicals introduced to the environment by humans have no effect on the ecosystem.

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The case the exersice tells is an example of how introduced subtances to a particular environment have a negative impact on the species' health, as states the C answer option: "factors in the environment can change the characteristic

User Luis D Urraca
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