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The trochophore larva is a common larval form found in marine invertebrates, like mollusks and annelids. Its development is thought to be evolutionarily significant as it may represent a stage in the evolution of more complex life forms. The presence of trochophore larvae in different groups suggests a shared evolutionary history and may reflect common ancestry.
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Larval stage of mollusks and annelids?
The larval stage of mollusks is called a trochophore, which is a free-swimming, ciliated larva that eventually develops into the adult form. For annelids, the larval stage is called a trochophore or a nectochaete, which also metamorphoses into the adult form after a period of growth and development.
What implication does the endosymbiont theory have for phylogeny?
The endosymbiont theory proposes that organelles like mitochondria and chloroplasts were once free-living prokaryotic organisms that were engulfed by a host cell and developed a symbiotic relationship. This has implications for phylogeny as it suggests that certain organelles have a different evolutionary history than the rest of the cell, leading to the concept of lateral gene transfer and complicating the interpretation of evolutionary relationships based on traditional phylogenetic methods.
Which is not a cause of evolutionary changes in organism?
evolutionary changes in organisms
Why is energetics important?
Energetics is important because it is essential for understanding how energy flows through biological systems, which is crucial for sustaining life. It helps in determining the efficiency of biological processes, including metabolism, growth, and reproduction. By studying energetics, scientists can gain insights into the ecological and evolutionary implications of energy use in organisms.
Why did evolutionary theory prove important in taxonomy?
Evolutionary theory provides a framework for understanding the relationships between organisms based on their shared ancestry and descent with modification. This has greatly influenced taxonomy by allowing classifications to reflect the evolutionary history of organisms, leading to more accurate and robust classification systems. By incorporating evolutionary principles, taxonomists can better organize and categorize species based on their evolutionary relationships.
Do platyhelminthes have a trochophore larval stage?
No, platyhelminthes do not have a trochophore larval stage. Trochophore larvae are typically characteristic of marine annelids and mollusks. Platyhelminthes have a diverse range of reproductive strategies, but they do not generally exhibit a trochophore larval stage in their life cycle.
The fertilized eggs of both mollusks and annelids develop into a distinct larval form called a?
trochophore
Do octopus have a trochophore?
No they don't
Larval stage of mollusks and annelids?
The larval stage of mollusks is called a trochophore, which is a free-swimming, ciliated larva that eventually develops into the adult form. For annelids, the larval stage is called a trochophore or a nectochaete, which also metamorphoses into the adult form after a period of growth and development.
Do mollusks and annelids have a trochophore stage?
Yes.
What phylum does trochophore larva belong to?
Mollusca and Annelida are two phylas with trochophore larvae
A characteristic shared by all mollusks and annelids is an?
have a trochophore
Do you think that the polyp stage or the medusa stage predominated in the ancestral cnidarian what implications does your answer have when interpreting the evolutionary relationships among the cnidari?
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Pear shaped larva found in mollusks are called?
Trochophore
Annelids and mollusks share a larval stage called a?
Trochophore.
The second free-swimming larval stage of bivalves is the?
trochophore
Do mollusks and annelids have the same larval stage?
Trochophore
