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Q. What is signifying when it is said that beings of the phylum Annelida are vascular beings? From which other phyla of the animal kingdom does this feature differentiate them?
The classification of these beings as vascular beings means that they have a circulatory system, with vessels that distribute substances all through the body.
Poriferans, cnidarians and flatworms do not have a circulatory system. In nematodes there is circulation of nutrients and gases through the pseudocoelom fluid.
1. A pure-breeding black, smooth guinea pig was mated to a pure-breeding white, rough female. They produced several litters, and eventually, five males and twenty females resulted
Determine the purpose of the study: There must be a sound rationale or justification for every research project. If the pui-pose of the study is clearly presented and just
porifera canal system skeleton
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#question.endocrine organ in crustaceans
F i l a r i a s i s Animal filariasis is an important helminthic infection caused by large number of parasites. In bovines, it is caused by setaria, stephanofilaria, p
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