Annelida flashcards

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what is an annelid? An annelid is a segmented worm of the phylum Annelida, such as an earthworm or leech
what are some examples of annelids? earthworms, leeches, night crawlers, ragworms, feather dusters, fire worms
Which superphylum are Annelids part of? Lophotrochozoa
what are some characteristics that define annelids? Annelids have a Metamerism, Protostomia, and Eucoelomates
Segmented worms are known as? annelids
How do annelids reproduce? Annelids are capable of both sexual and asexual reproduction. Majority of annelids are hermaphroditic and have a set of functional male and female sex organs. Some species reproduce primarily by budding, while others reproduce by laying and fertilizing eggs that hatch into planktonic larvae.
What kind of symmetry do they have? bilateral
How do Annelids move? They move through Peristaltic contractions.
The Coordinated movements of an annelid’s body segments are possible because of the? because of the ventral nerve cord and paired segmental ganglia.
What kinds of sensory structures do annelids possess? Ocelli or eyes, chemo and tactile receptors, ventral never cord, ganglia.
The digestive tube of annelids is divided into which three regions? crop, stomach, and intestine
The clitellum of an earthworm is associated with? reproduction
what is the ecological role of annelids? Annelids are deteriorates, they air-rate the soil as they crawl through it and when they shed, they provide nutrients to plants
What is metamerism? Metamerism is a portion of the nervous and (closed) circulatory systems, allowing it to function relatively independently.
Which parts are not considered metameres? The head and pygidium
What are the three subclasses of Phylum Annelida? Polychaeta, Oligochaeta, Hirudinida.
Leech belongs to which class? Class Hirudinea
Which is the mode of feeding in Leeches? Sanguinivous
The twisting of the visceral mass of gastropods is called? Torsion
what are some similarities between annelids and arthropods? They both have segmented body patterns

what is an annelid?

what are some examples of annelids?

Which superphylum are Annelids part of?

what are some characteristics that define annelids?

Segmented worms are known as?

How do annelids reproduce?

What kind of symmetry do they have?

How do Annelids move?

The Coordinated movements of an annelid’s body segments are possible because of the?

What kinds of sensory structures do annelids possess?

The digestive tube of annelids is divided into which three regions?

The clitellum of an earthworm is associated with?

what is the ecological role of annelids?

What is metamerism?

Which parts are not considered metameres?

What are the three subclasses of Phylum Annelida?

Leech belongs to which class?

Which is the mode of feeding in Leeches?

The twisting of the visceral mass of gastropods is called?

what are some similarities between annelids and arthropods?

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