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Comparative anatomy and embryology present the phenomenon of transformed
organs, structures that have changed their form and function with evolution.
Among flying insects, the flies (Diptera) differ from most others in having one
In several unrelated lines of fishes the bladder has become specialized as a lung
or, at least, as a highly vascularized accessory breathing organ. Some fishes with
such accessory organs are obligate air breathers and will drown if denied ...
branch of the nervous system, the autonomic system, helps to coordinate the
activities of many glands and organs and is itself closely connected to the
integrating centres of the brain. The brain of the fish is divided into several
anatomical and ...
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review