Organ System, Structure, Classification, Characteristics – Kuri007.com

Organ System, Structure, Classification, Characteristics – Kuri007.com
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Kuri007.com this time we will discuss the definition of Asteroidea – The upper (aboral) body surface is covered with a closed shape (Pedicelaria) and belongs to a group of invertebrates, often referred to as catfish.

Mouth below or called the surface of the mouth and anus at the top (aboral surface). The tube feet of the tent rest on the surface of the mouth. While on the Aboriginal surface there is also a madreporite besides the anus.

In this discussion, we will explain in full and clear, namely the definition of Asteroidea. For the full review… Read on as follows.

Definition of Asteroid

They are called asteroids because they resemble stars. Habitat where marine, coastal or inland sea fish live. Then it will appear in bushes of various sizes on the surface of the asteroid skin (starfish).

His hand gestures. And the dorsal body surface with blunt and chalky bends. What are asteroids? are a group of invertebrates, often referred to as catfish. The word Asteroidea comes from the Greek words, meaning aster (star) and eiodes (shape).

Organ Systems in the Body of Asteroidea

There are various types of systems in the body of this animal, including the following:

1. Reproductive System

Starfish is diesis. The reproductive organs are branched and on each arm. The female reproductive organs produce more eggs, while men produce more sperm than eggs.

Fertilization occurs in water and thus the Bipinaria larvae develop.

2. Excretion System

Expression is carried out by amoebocyte cells of Co present in the fluid. This fuel is made using donated walls. There are two brown prongs in the intestine that speak of brown liquid.

3. Nervous System

That nervous system has some form of radial nerve trunks, which are high on each arm above the trunk and finally meet with the oral nerve ring which surrounds the mouth.

There is also a network of nerves under the epidermal cells, while there are sensory devices in the groin area.

4. Food Digestive System

The alimentary canal arises at the mouth, which is connected to a short esophagus, and then connects to the stomach pouch. The torso consists of two halves, the face is larger than the back.

During a digestive process, the stomach represents mucus secretion. Starfish food in the form of containers, small fish, snails and shells. The materials are digested with the help of mucus and enzymes, while the soluble materials are excreted through the mouth.

5. Respiratory System

Prophecy is in the donation department, a cheap bag filled with cilia. This organ is located throughout the skin of the skin. The outer cilia permanently replenish oxygen in the upper reaches of England’s surface, while the inner cilia dehydrate the body in Brittany.

Asteroid Body Structure

  • Mouth below or called the surface of the mouth and anus at the top (aboral surface).
  • The tube feet of the tent rest on the surface of the mouth. While on the Aboriginal surface there is also a madreporite besides the anus.
  • The body consists of five or more arms arranged radially.
  • There is a sensor on the back of the arm.
  • The pointed tip of the eye patch contains a red, light-sensitive pigment.
  • The upper part of the body is covered with spikes in the form of scissors/staples (Pedicelaria).
  • Body organs attached to the entire arm.

Madreporite includes a type of pit that has been refined to connect seawater to the system into a sewage disposal.

Characteristics of Asteroidea

There are various characteristics in this asteroidea, including the following:

  • Can live longer and usually these animals also eat shellfish.
  • Generally hold one hand over the 5 arms sticking out the center of the disc.
  • The body is flattened as a star or pentagonal and has five or more radial symmetries.
  • There is a pipe base.
  • The upper (aboral) surface of the body is covered with closed forms (Pedicelaria).
  • The body differs depending on the species.
  • Has a hydraulic vascular system.
  • No headaches.
  • Has a suction device at the back of the pipe.
  • Everything is covered in thorns.

Starfish Classification

  • Kingdom : Animalia
  • Genus: Asteroid
  • Class : Asteroidea
  • Phylum : Echinodermata
  • Species: Asteroidea sp, Crossaster dan Culeitin, Asteropecten irregularis

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That’s all for the review this time, which we have conveyed in full and clear, namely regarding the definition of Asteroidea. Hopefully this review can be useful and useful for all of you.

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