In your research you discover a never before described species of animal with th

Question

In your research you discover a never before described species of animal with the following characteristics Field Notes: Collected underneath rock in moist soil Laboratory Analysis: Size: Body 25 cm (length) Body: Grayish-brown in coloration (dorsally); Lighter ventrally Body Cavity: Coelom Germ Layers: Symmetry: Cephalization: Present Segmentation Present Reproduction: Sexual (Hermaphroditic) Circulatory System: Closed Organs: Skeleton: Bilateral Three Digestive System: Complete Present Respiration System: Absent Nervous System: Excretory System: Metanephridia Hydrostatic Brain, ventral nerve cord Notes: Soft body with bristles on side Question 1. The organism would traditionally be classified into which Phylum? Nematoda b. Rotifera C. Echinodermata Annelida Arthropoda

Explanation / Answer

Ans : Annelida

Annelids are triploblastic , bilaterally symmetrical , coelomate , segmented animals with organ system level 0f organisation , tube within a tube body plan and complete digestive system. The number of species is 9000.

All the characteristic features mentioned above are the features of annelids.

So correct ans is ( d )

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