Coelenterata Ctenophora - Questions & Answers | Exam2Win

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71. In Hydra, digestion is

A. Extracellular

B. Intracellular

C. First extracellular and then intracellular

D. First intracellular and then extracellular

Explanation:

72. Animal showing thigmotaxis is

A. Ascaris

B. Taenia

C. Fungia

D. Hydra

Explanation:

73. Most appropriate term for the life cycle of Obelia is

A. Alternation of generations

B. Metagenesis

C. Metamorphosis

D. Neoteny

Explanation:

74. Hydra is coelenterate because it possesses

A. Mesogloea

B. Nematocysts

C. Body cavity

D. Tentacles

Explanation:

75. Cnidaria is characterized by

A. Nematoblasts

B. Coelenteron

C. Tissue level of organisation

D. All the above

Explanation: