A new unit of length is chosen such that the speed of light in vacuum is unity. What is the distance between sun and earth in terms of the new unit if light takes 8 min 20 se to cover the distance?
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A coelenterate that does not have stinging cells can grasp small animals that swim into its tentacles and carry them in through its mouth. Along with the stinging cells and the body plan, coelenterates have other features in common. Coelenterates have no blood or central nervous system.
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Answer:A coelenterate that does not have stinging cells can grasp small animals that swim into its tentacles and carry them in through its mouth. Along with the stinging cells and the body plan, coelenterates have other features in common. Coelenterates have no blood or central nervous system.
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