What keen observation/explanation did darwin make regarding the fauna and flora of the galápagos islands?

This aquarium exhibits biotic and abiotic factors in an aquatic environment. one of the abiotic factors is

Which of the following matches the organisms described with the correct domain? a. bacteria--unicellular, eukaryotic organisms with cell walls that do not contain peptidoglycanb. archaea--multicellular, eukaryotic organisms that do not have cell wallsc. eukarya--single-celled and multicellular organisms, with a defined nucleus and a variety of nutritional sourcesd. bacteria--unicellular, eukaryotic organisms that always lack cell walls

What is the cause hearing loss in human being