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Trochophore larva occurs in
- a)Annelida and Porifera
- b)Coelenterata and Annelida
- c)Mollusca and Coelenterata
- d)Annelida and Mollusca
Correct answer is option 'D'. Can you explain this answer?
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Trochophore larva occurs ina)Annelida and Poriferab)Coelenterata and A...
Trochopore larva is a small,translucent,free swimming larva characteristic of marine annelids and most group of molluscs.Trocophores are spherical or pear-shaped and are girdled by a ring of cilia the prototorch,that enables them to swim.In molluscs such as gastropods and bivalves,the trocophore develops into a second stage,the veliger,before metamorphosing to an adult form.Hence,option 'D' is the correct answer.
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Trochophore larva occurs ina)Annelida and Poriferab)Coelenterata and A...
Explanation:
Trochophore larva is a type of larval stage that is characteristic of certain groups of marine invertebrates. This larval form is found in the phyla Annelida and Mollusca.
Annelida:
- Annelids, such as polychaetes, have trochophore larvae that are free-swimming and ciliated.
- The trochophore larva of annelids helps in dispersal and feeding in the marine environment before metamorphosing into the adult form.
Mollusca:
- Mollusks, including species like clams, snails, and octopuses, also exhibit the trochophore larval stage.
- The trochophore larva of mollusks aids in dispersal, feeding, and development before transforming into the adult form.
Therefore, the presence of trochophore larva in Annelida and Mollusca is a significant developmental stage in the life cycle of these marine invertebrates.
Trochophore larva is a type of larval stage that is characteristic of certain groups of marine invertebrates. This larval form is found in the phyla Annelida and Mollusca.
Annelida:
- Annelids, such as polychaetes, have trochophore larvae that are free-swimming and ciliated.
- The trochophore larva of annelids helps in dispersal and feeding in the marine environment before metamorphosing into the adult form.
Mollusca:
- Mollusks, including species like clams, snails, and octopuses, also exhibit the trochophore larval stage.
- The trochophore larva of mollusks aids in dispersal, feeding, and development before transforming into the adult form.
Therefore, the presence of trochophore larva in Annelida and Mollusca is a significant developmental stage in the life cycle of these marine invertebrates.
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Trochophore larva occurs ina)Annelida and Poriferab)Coelenterata and Annelidac)Mollusca and Coelenteratad)Annelida and MolluscaCorrect answer is option 'D'. Can you explain this answer?
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