Which of the following is the largest human action that contributes to the loss of species in the tropical rain forest? 1. maintenance
2. commercialism
3. industry
4. agricultural

How does the author's purpose in this passage differ from an author writing about her personal struggle living with asthma?

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The wings of insects, birds, and bats evolved independently but carry out similar functions. this is an example of a. analogous structures. b. embryonic structures. c. vestigial structures. d. homologous structures.