Las propiedades que permiten diferenciar un tipo de material de otro, son llamadas: a-propiedades simples
b-propiedades generales y especificas
c-propiedades especificas e intensivas
d-ninguna de las anteriores

check for the pregnancy rating of drug. if its class c or d see if other alternatives

the wetland preservation movement began in the u.s. in earnest with the clean water act (cwa) of 1972. although not specifically written to protect wetlands, the cwa is comprised of a series of regulations designed to prevent pollutants from contaminating u.s. waters.

linnaeus is the father of taxonomy, which is the system of classifying and naming organisms. one of his contributions was the development of a hierarchical system of classification of nature. today, this system includes eight taxa: domain, kingdom, phylum, class, order, family, genus, and species.