The Urochordata, commonly known as "sea squirts," were initially considered sponges but later found their place among chordates. Lamarck, in 1816, positioned ...
Hamid Ali
The nervous system of Earthworms is a complex network of cells and tissues that plays a crucial role in coordinating and regulating the activities of the ...
In earthworms, the excretory organs are in the form of segmentally arranged coiled tubules, which are called nephridia. They remove the wastes through the ...
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