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Members of this phylum porifera are commonly known as sponges. They are asymmetrical animals. They are primitive multicellular animals with cellular level of organisation. Body wall is two layered -outer dermal layer called pinacoderm and inner gastral layer called choanoderm. Pinacocytes cells are present in the pinacoderm and collar cells or choanocytes are present in the choanoderm. The body possess minute pores called ostia, a large cavity called spongocoel and a pore called osculum. They have a water canal system. Water enters through minute pores called ostia in the spongocoel and from the spongocoel goes out through the osculum. The body is supported by a skeleton. They are hermaphrodite and reproduce by asexual and sexual reproduction.


Q. Sponges gather food particles with the help of specialised ______ collar cells.

  • a)
    spiked

  • b)
    flat

  • c)
    flagellated

  • d)
    ciliated

Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Members of this phylum porifera are commonly known as sponges. They ar...
When the water current passes through the channels inside the sponge with the help of flagellated collar cells, bacteria or tiny particles are taken up from the water as food.
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Members of this phylum porifera are commonly known as sponges. They are asymmetrical animals. They are primitive multicellular animals with cellular level of organisation. Body wall is two layered -outer dermal layer called pinacoderm and inner gastral layer called choanoderm. Pinacocytes cells are present in the pinacoderm and collar cells or choanocytes are present in the choanoderm. The body possess minute pores called ostia, a large cavity called spongocoel and a pore called osculum. They have a water canal system. Water enters through minute pores called ostia in the spongocoel and from the spongocoel goes out through the osculum. The body is supported by a skeleton. They are hermaphrodite and reproduce by asexual and sexual reproduction.Q. Sponges gather food particles with the help of specialised ______ collar cells.a)spikedb)flatc)flagellatedd)ciliatedCorrect answer is option 'C'. Can you explain this answer?
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Members of this phylum porifera are commonly known as sponges. They are asymmetrical animals. They are primitive multicellular animals with cellular level of organisation. Body wall is two layered -outer dermal layer called pinacoderm and inner gastral layer called choanoderm. Pinacocytes cells are present in the pinacoderm and collar cells or choanocytes are present in the choanoderm. The body possess minute pores called ostia, a large cavity called spongocoel and a pore called osculum. They have a water canal system. Water enters through minute pores called ostia in the spongocoel and from the spongocoel goes out through the osculum. The body is supported by a skeleton. They are hermaphrodite and reproduce by asexual and sexual reproduction.Q. Sponges gather food particles with the help of specialised ______ collar cells.a)spikedb)flatc)flagellatedd)ciliatedCorrect answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Members of this phylum porifera are commonly known as sponges. They are asymmetrical animals. They are primitive multicellular animals with cellular level of organisation. Body wall is two layered -outer dermal layer called pinacoderm and inner gastral layer called choanoderm. Pinacocytes cells are present in the pinacoderm and collar cells or choanocytes are present in the choanoderm. The body possess minute pores called ostia, a large cavity called spongocoel and a pore called osculum. They have a water canal system. Water enters through minute pores called ostia in the spongocoel and from the spongocoel goes out through the osculum. The body is supported by a skeleton. They are hermaphrodite and reproduce by asexual and sexual reproduction.Q. Sponges gather food particles with the help of specialised ______ collar cells.a)spikedb)flatc)flagellatedd)ciliatedCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Members of this phylum porifera are commonly known as sponges. They are asymmetrical animals. They are primitive multicellular animals with cellular level of organisation. Body wall is two layered -outer dermal layer called pinacoderm and inner gastral layer called choanoderm. Pinacocytes cells are present in the pinacoderm and collar cells or choanocytes are present in the choanoderm. The body possess minute pores called ostia, a large cavity called spongocoel and a pore called osculum. They have a water canal system. Water enters through minute pores called ostia in the spongocoel and from the spongocoel goes out through the osculum. The body is supported by a skeleton. They are hermaphrodite and reproduce by asexual and sexual reproduction.Q. Sponges gather food particles with the help of specialised ______ collar cells.a)spikedb)flatc)flagellatedd)ciliatedCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Members of this phylum porifera are commonly known as sponges. They are asymmetrical animals. They are primitive multicellular animals with cellular level of organisation. Body wall is two layered -outer dermal layer called pinacoderm and inner gastral layer called choanoderm. Pinacocytes cells are present in the pinacoderm and collar cells or choanocytes are present in the choanoderm. The body possess minute pores called ostia, a large cavity called spongocoel and a pore called osculum. They have a water canal system. Water enters through minute pores called ostia in the spongocoel and from the spongocoel goes out through the osculum. The body is supported by a skeleton. They are hermaphrodite and reproduce by asexual and sexual reproduction.Q. Sponges gather food particles with the help of specialised ______ collar cells.a)spikedb)flatc)flagellatedd)ciliatedCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
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