Coelenterata Ctenophora - Questions & Answers | Exam2Win

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326. Zoochlorellae or zooxanthellae of coloured Hydra occur in

A. Epithelio-muscular cells

B. Nutritive cells

C. Mesogloea

D. Interstitial cells

Explanation:

327. Gastrovascular cavity or coelenteron is partitioned in

A. Hydrozoa

B. Scyphozoa

C. Actinozoa

D. Both B and C

Explanation:

328. Obelia is

A. Sedentary

B. Attached but capable of locomotion

C. Motile

D. Free floating

Explanation:

329. Tentacles of Obelia are

A. Hollow

B. Solid

C. Internally chambered

D. Spiny and hollow

Explanation:

330. In Physalia, the float is

A. Crimson

B. Brown

C. Blue

D. Colourless

Explanation: