La estructura del ala de un murciélago y el ala de un insecto se clasifica como

i believe the correct answer from the choices listed above is the first option. the scientists need to look at the   validity of data, claims, hypotheses, and observations before  developing an argument. they base their arguments on facts that are present and they make sure they have proofs. 

explanation:

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.