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What phylum includes worms that excrete by means of nephridia?
The phylum Annelida includes worms that excrete waste through structures called nephridia. Nephridia are tubular structures that filter waste from the coelomic fluid and release it outside the body through pores called nephridiopores.
Are worms classified by their body shapes?
Yes, worms are classified based on their body shapes and structures. There are various types of worms, such as flatworms, roundworms, and segmented worms, each with distinct body structures that help define their classification.
Do segmented worms have structures for movement?
Yes
What are the bristlelike structures on annelids called?
The bristlelike structures on annelids are called "setae." These tiny hair-like structures are used for locomotion and help the worms anchor themselves to surfaces as they move through soil or water. Setae can vary in number and structure depending on the species of annelid.
How many body parts do worms have?
Worms typically have around 100-150 body segments, called metamerisms. These segments contain muscles, nerves, and other important structures that allow the worm to move and function.
What structures help the earthworm grip the ground as it moves?
The structures that help earthworms and most other worms in the annelida phylum are called setae. These are bristle-like structures that act almost like feet and grip the surface the earthworm is moving on.
Why are worms called underground farmers?
worms are called underground worms because the live in dirt and eat there way through it.
What are the structures of Annelids?
they are all earth worms and can be disected without dying.
What are marine worms in the phyla annelid called?
Marine worms in the phylum Annelida are commonly referred to as polychaetes. These segmented worms are characterized by their bristle-like structures called chaetae, which aid in locomotion and anchorage in their marine environments. Polychaetes exhibit a wide variety of forms and habitats, often playing crucial roles in marine ecosystems. Examples include species like the ragworm and sandworm.
What are the green worms that hang on silk called?
I'm pretty sure they are called inch worms!
What are the three classes of annelids?
The three classes of annelids are Polychaeta (marine worms with bristle-like structures called chaetae), Oligochaeta (terrestrial and freshwater worms like earthworms), and Hirudinea (leeches, which are typically found in freshwater environments).
What is a group of worms called?
A group of worms is commonly referred to as a "cluster" or "bunch."
