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Question
The structure in Sponges that corresponds to mouth of other animals is
The structure in Sponges that corresponds to mouth of other animals is
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Solution
The correct option is B Ostium
- In higher animals, mouth is primarily used for the intake of food.
- Porifera are primitive animals that have a water transport or canal system.
- Water enters through minute pores (ostia) in the body wall into a central cavity, spongocoel, from where it goes out through the osculum.
- This pathway of water transport is helpful in food gathering, respiratory exchange, and removal of waste.
- Because sponge gathers food through the incoming water current, ostia are similar to the mouth of higher animals.
Hence, the correct option is B.
- In higher animals, mouth is primarily used for the intake of food.
- Porifera are primitive animals that have a water transport or canal system.
- Water enters through minute pores (ostia) in the body wall into a central cavity, spongocoel, from where it goes out through the osculum.
- This pathway of water transport is helpful in food gathering, respiratory exchange, and removal of waste.
- Because sponge gathers food through the incoming water current, ostia are similar to the mouth of higher animals.
Hence, the correct option is B.
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