Is an annelid a plant or an animal?

The Annelids are bilaterally symmetrical, triploblastic, coelomate, invertebrate organisms. They also have parapodia for locomotion. Most textbooks still use the traditional division into polychaetes (almost all marine), oligochaetes (which include earthworms) and leech-like species.

1. How are annelids classified?
2. What best describe an annelid?
3. Is an earthworm an animal?
4. Is a millipede an annelid?
5. Is a leech an annelid?
6. What type of reproduction does an annelid have?
7. What type of nervous system does a annelid have?
8. What is the circulatory system of an annelid?
9. Is bee an insect or animal?
10. Is Snail a insect?
11. Are insects animals Yes or no?
12. Is a tapeworm an annelid?
13. What is a common annelid?

How are annelids classified?

Critical appraisal. Most authors accept the annelids as having three major classes: Polychaeta, Oligochaeta, and Hirudinea. Older systems would place the polychaetes and oligochaetes under the class Chaetopoda because both groups possess setae.

What best describe an annelid?

Annelids are segmented worms such as earthworms and leeches. Annelids have a coelom, closed circulatory system, excretory system, and complete digestive system. They also have a brain. ... Leeches are either predators or parasites.

Is an earthworm an animal?

Animals can be divided into two categories: vertebrates (animals with backbones) and invertebrates (animals without backbones). Worms definitely don't have a backbone or any bones in their slender, tender body so they are invertebrates.

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).

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. ... Leeches occur primarily in fresh water and on land.

What type of reproduction does an annelid have?

Reproduction in annelids is a fairly complex topic. Polychaete and oligochaete species can reproduce both sexually and asexually, while leeches can only reproduce sexually. Asexual reproduction does not involve the formation of gametes (eggs and sperm), and it usually occurs either by budding or fission.

What type of nervous system does a annelid have?

In textbooks the central nervous system (cns) of Annelida is described as to consist of a dorsal brain with several commissures, in most taxa located in the prostomium, and nerves that encircle the mouth and connect the brain to the ventral ganglionic nervous system [1, 2].

What is the circulatory system of an annelid?

Much like humans, annelids have a closed circulatory system, which means the blood circulates through a closed network of blood vessels. In some cases, such as with polychaete worms, the blood is pumped directly through self-contracting blood vessels. ... However, unlike our single heart, some annelids have five.

Is bee an insect or animal?

Bees are insects with wings closely related to wasps and ants, known for their role in pollination and, in the case of the best-known bee species, the western honey bee, for producing honey. Bees are a monophyletic lineage within the superfamily Apoidea.

Is Snail a insect?

But is a snail an insect? Well, the short answer is no. They're members of the animal kingdom, like bugs. But they're in a different phylum altogether — the phylum Mollusca to be exact — unlike insects who are in the phylum Arthropoda.

Are insects animals Yes or no?

Despite their alien appearance, insects are animals, just like you and me. Insects share the kingdom Animalia with all animals on earth. However, the impression that insects are so very different from us is well founded. Insects diverged from mammals and other animals long ago.

Is a tapeworm an annelid?

Worms include several groups. The first of these, Platyhelminthes, includes the flatworms, tapeworms, and flukes. ... The third group consists of the segmented worms, with bodies divided into segments, or rings. This phylum is called Annelida.

What is a common annelid?

Earthworms. Earthworms are probably the best known and most common of the annelids; more than 2,700 kinds of earthworms have been identified around the world.