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Provide appropriate technical term in th...

Provide appropriate technical term in the space provided.
(a) Blood-filled cavity in arthropods . . . . . . . . . .
(b) Free-floating form of cnidaria . . . . . . . . . . .
(c ) Stinging organ of jelly fishes . . . . . . . . . .
(d) Lateral appendages in aquatic annelids . . . . . . . . . . .

Text Solution

Verified by Experts

(a) Haemocoel is blood-filled cavity in arthropods containing haemolymph.
(b) Medusa is a form in cnidarians in which the body is shaped like an umbrella which can float freely in sed water
(c ) Nematocytes are capsules of specialised cells in cnidarians which act as a paralysing sting
(d) Parapodia are the paired unjointed lateral outgrowth in annelids bearing chaetae.
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