Our present understanding of the excretory system of Acanthocephala is largely the result of work done by 5 German scholars: Kaiser, Schepotieff, Meyer, Kilian, and von Haffner. Present studies ...

The evolution of complexity relies on changes that result in new gene functions. Here we show that the unique morphological and functional features of the excretory duct cell in C. elegans result from ...

Circulatory system Transport substances. Defend the body. Regulate temperature. Excretory system Remove waste products and unwanted substances. Regulate the water content of the body. Muscular system ...