If 159,000 kcal of energy is available in the producer tropic level how much kcal of energy is available for the secondary consumers

layer 3 is younger than layer 6.

ok yes, but what is the question? as soon as you ask the actual question i will answer it. : )

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.