Basis of animal classification
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See all →- While trying to find out the characteristic of a newly found animal, a researcher did the histology of adult animal and observed a cavity with presence of mesodermal tissue towards the body wall but no mesodermal tissue was observed towards the alime… Answer: 2. Pseudocoelomate Key idea: A pseudocoelom is a body cavity only partly lined by mesoderm. Here mesoderm is present towards the bod... 1
- The following are the statements about non-chordates :A. Pharynx is perforated by gill slits.B. Notochord is absent.C. Central nervous system is dorsal.D. Heart is dorsal if present.E. Post anal tail is absent.Choose the most appropriate answer from… Answer: 4. B, D & E only Key idea: compare chordate and non-chordate features. Non-chordates have no notochord (B), the heart, if present, i... 1