Table of Contents
Why are leeches classified as annelids?
Leeches are segmented parasitic or predatory worms that comprise the subclass Hirudinea within the phylum Annelida. The body is muscular and relatively solid, and the coelom, the spacious body cavity found in other annelids, is reduced to small channels.
Are leeches and earthworms annelids?
The annelids include marine forms called Polychaetes, the earthworms, and the leeches. Polychaetes are the most diverse group of annelids and most live in the marine environment.
Is a millipede an annelid?
The Annelid phylum contains three classes of organisms: Polychaeta, Oligochaeta and Hirudinea. The Arthropoda phylum contains five classes: Crustacea (shrimp and lobster), Arachnida (spiders and scorpions), Chilopoda (centipedes), Diplopoda (millipedes) and Insecta (roaches and beetles).
What are some examples of annelids?
What animal has 32 brains?
Leech has 32 brains. A leech’s internal structure is segregated into 32 separate segments, and each of these segments has its own brain. Leech is an annelid. They have segments.
Do leech bites hurt?
Leech bites are not dangerous or painful, just annoying. Unlike some other creatures that bite, leeches don’t cause stinging, carry diseases or leave a poisonous stinger in the wound. The bite doesn’t hurt since leeches release an anaesthetic when they bite, but due to the anticoagulant, the wounds bleed a fair bit.
Where do most leeches live?
Most leech species are found in shallow, slow-moving freshwater, but some live in the oceans, and a few live in moist soil on land.
What was the longest earthworm ever found?
The longest earthworm is Microchaetus rappi of South Africa. In 1967 a giant specimen measuring 6.7 m (21 ft) in length when naturally extended and 20 mm (0.8 in) in diameter was found on a road between Alice and King William’s Town.
Is a flatworm a parasite?
Flatworm, also called platyhelminth, any of the phylum Platyhelminthes, a group of soft-bodied, usually much flattened invertebrates. A number of flatworm species are free-living, but about 80 percent of all flatworms are parasitic—i.e., living on or in another organism and securing nourishment from it.
What are 2 examples of Annelida?
Examples of Annelids
What does Annelida stand for?
The annelids /ˈænəlɪdz/ (Annelida /əˈnɛlɪdə/, from Latin anellus, “little ring”), also known as the ringed worms or segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches.
What animal has 800 stomachs?