Animalscaretips
- What is the difference between Polychaetes and Oligochaetes?
- What are the differences between Annelid and Arthropoda?
- What are Tubicolous Polychaetes?
- What types of animals are in the class polychaeta?
- How would you distinguish between oligochaetes and Hirudineans?
- How do polychaetes differ from earthworms?
- How do polychaetes differ from other annelids?
- How do annelid animals differ from arthropods class 9th?
- What is the difference between a mollusk and an annelid?
- What class are bristle worms in?
- What characteristics do polychaetes have?
- Do polychaete worms have an exoskeleton?
What is the difference between Polychaetes and Oligochaetes?
The main difference between polychaetes and oligochaetes is that the polychaetes have a pair of parapodia per body segment that bear many bristles. But, oligochaetes have few bristles on their outer surface of the body but, no parapodia. ... Polychaetes and oligochaetes are two subclasses of phylum Annelida.
What are the differences between Annelid and Arthropoda?
Both Annelida and Arthropoda are composed of segmented animals. The main difference between Annelid and Arthropoda is that Annelida consists of a hydrostatic skeleton whereas Arthropoda consists of an exoskeleton made up of chitin. Animals in both phyla are subdivided into different classes based on their diversity.
What are Tubicolous Polychaetes?
Tubicolous polychaetes: These are tube dwelling polychaetes. They live in temporary or permanent self-secreted tubes. These tubes act as protective covering. The tubes of various species vary greatly in form and construction.
What types of animals are in the class polychaeta?
Polychaetes, which include rag worms, lugworms, bloodworms, sea mice, and others, are marine worms notable for well-defined segmentation of the body.
How would you distinguish between oligochaetes and Hirudineans?
Annelid worms—polychaetes, earthworms (oligochaetes), and leeches (hirudineans)—are distinguished by linear series of external ringlike segments; the grooves between segments coincide with internal compartments, often separated by transverse sheets of tissue (septa), containing serially repeated nervous, muscle, and ...
How do polychaetes differ from earthworms?
Earthworms differ from polychaetes in that they do not have parapodia but DO possess a clitellum, which is used in reproduction. ... Unlike polychaetes, earthworms lack gills and take in oxygen through their skin, one reason why they most live in moist soils.
How do polychaetes differ from other annelids?
Polychaetes differ from other annelids in having a well differentiated head with specialized sense organs and no clitellum. They have many setae, usually arranged in bundles on the parapodia. ... The sense organs in polychaetes are more highly developed than in oligochaetes.
How do annelid animals differ from arthropods class 9th?
Hint: Annelids are the animals that are referred to as segmented worms, while arthropods are referred to as animals with jointed legs. An example of annelids is the earthworm and an example of arthropods is the Housefly. The organisms show the presence of Annulus (rings or segments) all over the body.
What is the difference between a mollusk and an annelid?
Mollusks are invertebrates such as the common snail. Most mollusks have shells. Annelids are worms such as the familiar earthworm. They have segmented bodies.
What class are bristle worms in?
Polychaetes belong the phylum Annelida, the segmented worms. The phylum also includes the classes Hirudinea, which contain the leeches, and the Oligochaeta, the earthworms. The class Polychaeta are the marine worms, such as the nereids (sandworms) and glycerids (bloodworms).
What characteristics do polychaetes have?
The known species of polychaetes share only a few characteristics. Each has a head, a tail and a segmented body, and typically each body segment has a pair of leg-like parapodia with spiny bristles sticking out. It's these bristles that give the worms their name: "polychaete" is Greek for "with much hair."
Do polychaete worms have an exoskeleton?
No, bristle worms do not have exoskeletons. They also do not have endoskeletons, the term given to animals whose skeletal structure is located within...
