Select the option that shows the correct combination of an organism, its level of organization, symmetry and body cavity.
(1) Sycon Tissue level Asymmetry Spongocoel
(2) Taenia Organ level Bilateral symmetry Pseudocoelom
(3) Asterias Organ system level Asymmetry True coelom
(4) Hydra Tissue level Radial Coelenteron

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Solution

The correct option is D 4
(1) Sycon has the cellular level of body organization, it is asymmetrical and has a spongocoel.
(2) Taenia has organ system level of body organization, it is bilaterally symmetrical and it is acoelomate.
(3) Asterias has organ system level of body organization, it is radially symmetrical and has a true coelom.
(4) Hydra has a tissue level of body organization, it is radially symmetrical and has a gastrovascular cavity called coelenteron.
Hence, the correct answer is 'Option 4'

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