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प्रश्न
Define the terms and give one example
Coelom
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उत्तर
Coelom: Coelom is the internal body cavity between visceral organs and body wall in which well-developed organs can be accommodated. In some animals pseudocoelom is present (e.g. nematodes) which is a body cavity not lined by mesoderm. True coelom is lined by mesoderm and first appears in annelids. Examples of animals in which true coelom is present are Earthworm, cockroach, snail, all chordates such as birds, humans, etc.
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संबंधित प्रश्न
Porifera : Asymmetrical : : Cnidaria : __________
The body of the animal in which phylum is radially symmetrical and diploblastic?
What is the use of cnidoblast for us?
State whether true or false. If false, correct the statement.
Canal system is seen in coelenterates.
What is nematocyst?
______ are diploblastic.
What is polymorphism?
Which of the following traits is not shared by both sea anemones and jelly fish?
What is metagenesis? Mention an example which exhibits this phenomenon.
Provide appropriate technical term in the space provided.
Stinging organ of jelly fishes ______.
