All yoụ radially symmetrical or bilaterally symmetrical? Which side of your body is dorsal. and which side is ventral.

From the following general characters find out corresponding Class with an Example a) Exclusively marine, triploblastic, spines on the skin, radially symmetrical in the adult and bilaterally symmetrical in the larval stage. b) Marine, they migrate towards freshwater for spawning, then their larvae retum to ocean after metamorphosis. c) Triploblastic, bilaterally symmetrical, coelomate and metamerically segmented animals.

Identify the phylum whose larvae are bilaterally symmetrical, but adults are radially symmetrical. Mention two salient features of the phylum,

For an atom or ion having single electron, compare the energies of the following orbitals: S_(1)= a spherically symmetrical orbital having two spherical nodes. S_(2) = an orbital which is double dumb-bell and has no radial node. S_(3) = an orbital with orbital angular momentum zero and three radial nodes. S_(4) = an orbital having one planar and one radial node.

Which of the following group in radially symmetrical a. only cnidaria b. sponges c. Cnidaria and Echinodermata d. Only Echinodermata

During a seashore visit, a student collected two organisms. Observing the morphology, it is clearthat the organisms are radially symmetrical. One of them shows bioluminescene. a) To which phylum does this organism belong? b) Identify the possible phyla to which the other organism can be included. c) Which distinctive feature ofthis organism will help you to categorize it into a particular phylum?