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Suppose a family replaces ten 60-watt incandescent bulbs with ten 30-watt
fluorescent lamps. If each light was used for 4 hours per day and the cost of electricity
was 10.0 c/kWh, how much money would they save in a year? Explain you answer.

Zoo geographic regions are characterized by the presence of specific groups of animals these regions are determined by the taxonomic or phylogenetic relationships of animals. the map shows the zoogeographic regions proposed by the naturalist alfred russel wallace in 1876. the similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between the organisms in both locations ?

What is the ecological role of food chains and food webs

Asegment of dna that codes for rna and a protein is a