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Trochophore.
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∙ 11y ago
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What features does annelids and mollusks share?
their weirdness
What evidence indicates that annelids and mollusks are closely related?
Gene based phylogenetic studies indicate that annelids and mollusks share a recent common ancestor
What is the evidence which shows that mollusks and annelids share a common ancestor?
Mollusks and segmented worms have a one-way digestive system, a separate mouth and anus, and their larvae are very similar. This is the best evidence that they have a common ancestor.
Do mollusks and segmented worms share a common ancestor?
Yes these two share common ancestors.
Mollusks are classified with other organisms that?
share similar body plans and patterns of development
What two features do cephalopods share with humans that other mollusks do not?
Cephalopods are a phylum of mollusks that include squids, octopi, the chambered nautilus, and cuttlefish. All cephalopods have tentacles, most are carnivores, and they are all mollusks. All mollusks have a radula, or toothy tongue, a mantle, or thin layer of tissue that covers the organs and makes the shell, and a muscular foot.
What features of lumbricus indicate that it is an annelid?
This would include the ultrastructure of the cuticle. These creatures share this and many other features with the other annelids.
What trait do all mollusks nervous system share?
They all have complex ganglia to control breathing, movement, and digestion.
What characteristics do all mollusks share that separate this phylum from other phyla in the kingdom animalia?
All mollusks possess a soft body covered by a hard shell, a muscular foot for movement, and a mantle that secretes the shell. These characteristics distinguish mollusks from other phyla in the animal kingdom.
Two traits that the squid share with the mollusk?
They both live in the ocean and they have no bone structure.
What is a share capital?
This is the sum of money the shareholders pay into which is called the share capital This is the sum of money the shareholders pay into which is called the share capital
What phylum do leech belong to?
Leeches are annelids comprising the subclass Hirudinea. There are freshwater, terrestrial, and marine leeches. Like the Oligochaeta, they share the presence of a clitellum. Like earthworms, leeches are hermaphrodites. Some, but not all, leeches are hematophagous
