What is a characterist of annelids?

Characteristics of Phylum Annelida They have a long and segmented body. Annelids are bilaterally symmetrical. They are triploblastic. Also, they exhibit organ system grade of organisation, showing organ differentiation. The body is covered with a thin cuticle.

1. What are the characteristics of annelids for kids?
2. What is the main function of Annelida?
3. Are annelids asexual?
4. How are annelids segmented?
5. What are the characteristics of phylum Annelida and Arthropoda?
6. What is the most distinguishing characteristic of annelids Why is it important?
7. What are the economic importance of annelids?
8. What is special about the body structure of the annelid?
9. Are annelids warm or cold blooded?
10. How do annelids eat?
11. Do annelids have eyes?
12. Are annelids Monoecious or dioecious?
13. How do annelid animals differ from arthropods explain in detail?
14. What makes up the skeleton that is used by annelids for movement?

What are the characteristics of annelids for kids?

The animals in the Annelida are segmented worms. They have no legs, and no hard skeleton. Unlike mollusks, annelid bodies are divided into many little segments, like rings joined together. There are many other kinds of worms, but only annelids are segmented this way.

What is the main function of Annelida?

The coelomic fluid of annelids plays a role in many important functions—e.g., locomotion and regulation of fluid transfer through the body wall (osmoregulation).

Are annelids asexual?

Most species of annelids can reproduce both asexually and sexually. However, leeches can reproduce only sexually. Asexual reproduction may occur by budding or fission.

How are annelids segmented?

annelid, phylum name Annelida, also called segmented worm, any member of a phylum of invertebrate animals that are characterized by the possession of a body cavity (or coelom), movable bristles (or setae), and a body divided into segments by transverse rings, or annulations, from which they take their name.

What are the characteristics of phylum Annelida and Arthropoda?

A distinguishing characteristic shared by annelids and arthropods is their body segmentation. At some point in development, segmented animals possess a body plan with repeating segments of identical or similar structures. Later in development, some segments may form more specialized structures.

What is the most distinguishing characteristic of annelids Why is it important?

What is the most distinguishing characteristic of annelids? Why is it important? Segmentation; each segment has its own muscles that lengthen and shorten for efficient movement; groups of segments may take on specific function.

What are the economic importance of annelids?

In addition to improving soil fertility, annelids serve humans as food and as bait. Scientists observe annelids to monitor the quality of marine and fresh water.

What is special about the body structure of the annelid?

Annelid Features:

Elongate and bilateral with segmented true body cavity (coelom) ... Body wall made of circular and lengthwise muscles. Continuous gut running from mouth to anus. Bristle-like structures projecting from body called setae (except in leeches)

Are annelids warm or cold blooded?

The annelids like earthworm, leech, nereis are ectotherms. Their body temperature fluctuates with temperature of environment.

How do annelids eat?

Burrowing annelids, like the earthworm, play an important role in helping organic matter decompose. Earthworms eat dead plants and animals. When they eat, they also take in soil and tiny pebbles. Earthworms take in nutrients from microorganisms in the material they ingest.

Do annelids have eyes?

Pigmented ocelli and eyes in Annelida. Most polychaete species have an eye of one type or another, whereas these organs are a rare exception in the large taxon Clitellata. In this group, only leeches and certain species of Naidinae possess pigmented eyes (Purschke, 2002, Purschke, 2003a).

Are annelids Monoecious or dioecious?

Annelids may be either monoecious with permanent gonads (as in earthworms and leeches) or dioecious with temporary or seasonal gonads that develop (as in polychaetes). However, cross-fertilization is preferred in hermaphroditic animals.

How do annelid animals differ from arthropods explain in detail?

The circulatory system of annelids is closed. Arthropods have an open circulatory system. ... Appendages are absent in Annelids. Arthropods have jointed appendages.

What makes up the skeleton that is used by annelids for movement?

Annelid worms have what's known as a hydrostatic skeleton, or hydroskeleton. This kind of skeleton is based on the Greek root hydro-, meaning water.