This is the contamination of an environment beyond natural correction

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

What is the relationship between absorbance of light and the rate of photosynthesis?

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 ?