Classically, oligochaetes and leeches are placed within the phylum Annelida either in the order Hirudinea, class Clitellata, or in the class Euhirudinea.

What category is a leech in?

The leech is an invertebrate animal belonging to the phylum Annelida, a zoological category that includes more than 15,000 species of segmented bristle worms and 650 species of leeches in the subclass Hirudinea.

Which phylum has earthworms and leeches?

A major invertebrate phylum of the animal kingdom, the annelids number more than 9,000 species distributed among three classes: the marine worms (Polychaeta), which are divided into free-moving and sedentary, or tube-dwelling, forms; the earthworms (Oligochaeta); and the leeches (Hirudinea).

What animal phylum do Leeches belong in Brainly?

Leeches are soft bodied segmented parasitic worms. They belong to the phylum Annelida.

Are Cnidaria vertebrates or invertebrates?

Cnidarian. A cnidarian (ny-DAIR-ee-uhn) is a simple invertebrate (an animal without a backbone) that lives in the water and has a digestive cavity with only one opening. Jellyfish, sea anemones, corals, and hydra are all cnidarians.

Vertebrate Animals for kids: Mammals, fish, birds, amphibians and reptiles

33 related questions found

Are leeches and tapeworms in the same phylum?

Phylum Annelida includes segmented worms. These animals are found in marine, terrestrial, and freshwater habitats, but a presence of water or humidity is a critical factor for their survival, especially in terrestrial habitats. ... The phylum includes earthworms, polychaete worms, and leeches.

Which phylum of worms includes the leeches quizlet?

Leeches are segmented worms that belong to the phylum Annelida and comprise the subclass Hirudinea. Like the oligochaetes, such as earthworms, leeches share a clitellum and are hermaphrodites.

Is a leech an annelid?

leech, (subclass Hirudinea), any of about 650 species of segmented worms (phylum Annelida) characterized by a small sucker, which contains the mouth, at the anterior end of the body and a large sucker located at the posterior end. All leeches have 34 body segments.

Are leeches amphibians?

Most leeches are freshwater animals, but many terrestrial and marine species occur. ... Some species are considered amphibious as they have been observed in both terrestrial and aquatic habitats.

Why do leeches eat blood?

The short answer is that leeches need blood to grow and reproduce (make baby leeches). Leeches are worms that live in water or on land and feed by sucking blood from fish, frogs, lizards, birds or, if they get the chance, larger animals like humans. They suck blood because it is a very good food source for them.

What phylum are medicinal leeches?

Medicinal leech, any of certain leech species (phylum Annelida), particularly Hirudo medicinalis, H. verbana, and H. orientalis, once used in the treatment of human diseases and used at present as a source of anticoagulants following certain surgical procedures.

Do leeches have antennae?

They are dark black and look like "moving tar" They do not have "antennae like" things as slugs or snails do (Sorry I don't know correct name). And they are pretty small.

What is the larval stage of leech?

Called lophotrochozoans, they range from clams, snails and octopuses to segmented worms and even earthworms, most of which develop from an egg to an intermediate larval stage called a trochophore before metamorphosing to their final form.

What phylum does earthworm belong to?

earthworm, also called angleworm, any one of more than 1,800 species of terrestrial worms of the class Oligochaeta (phylum Annelida)—in particular, members of the genus Lumbricus.

Which of the following includes the vertebrates?

Vertebrates are animals that have a backbone or spinal column, also called vertebrae. These animals include fish, birds, mammals, amphibians, and reptiles.

Which of the following is a member of the annelid phylum?

The annelids include earthworms, polychaete worms, and leeches. All members of the group are to some extent segmented, in other words, made up of segments that are formed by subdivisions that partially transect the body cavity. Segmentation is also called metamerism.

How do leeches differ from earthworms?

They differ from earthworms in that they are flatter and actually lack a complete coelomic cavity; which most annelids do have. They also possess “suckers” at the head and tail ends. The ectoparasite we all call the leech.

Are slugs and leeches related?

Leeches are relatives of earthworms, and mostly feed upon the blood of other creatures, whereas Slugs belong to mollusks, which is why their structure resembles that of snails, but lacks the outer shell or a tough covering. Leeches and Slugs are similar invertebrates, but differ in their places of dwelling.

Is Chordata a vertebrate or invertebrate?

The phylum Chordata contains two groups of invertebrate chordates, but the most conspicuous and familiar members of Chordata are the vertebrates. Phylum chordata: All chordates are deuterostomes, possessing a notochord. Vertebrates are differentiated by having a vertebral column.

Which of the following animals belong to phylum Cnidaria?

Mostly marine animals, the cnidarians include the corals, hydras, jellyfish, Portuguese men-of-war, sea anemones, sea pens, sea whips, and sea fans.

What is a animal phylum?

Small Shelly Animals (Tommotian Fauna) In biological taxonomy, a phylum (plural phyla) is a taxon in the rank below kingdom and above class. A Phylum represents the largest scientific grouping of life forms sharing evolutionary certain requirements of a common ancestor in evolution.

Is a leech a herbivore carnivore or omnivore?

Some leeches are carnivorous, eating insect larvae and other small invertebrates. ... An animal that eats both plants and animals is called an omnivore.