Which organism is a radially symmetrical, polyp-like animal that lacks embryonic mesoderm and has an incomplete digestive tract (containing only one opening)? comb jelly (ctenophore) sponge beetle sea urchin anemone
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Step 1: The question asks for an organism that is radially symmetrical, polyp-like, lacks embryonic mesoderm, and has an incomplete digestive tract. Show more…
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Dave K.
The characters given below are shown by (i) Extracellular and intracellular digestion. (1.) Exclusively marine, radially symmetrical, diploblastic, tissue level of organization. (iii) Bisexual, fertilization external and indirect development. (iv) No asexual reproduction. (v) Presence of comb plates. (a) Cnidaria (b) Porifera (c) Ctenophora (d) Rotifers.
Radiata Radial A globe-shaped animal with two sticky tentacles and ridges of cilia beating along its sides Diploblastic Protostome Ecdysozoan Lophotrochozoan Bilateral Triploblastic Deuterostome Neither Rotational None Neither Chordate
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