Main characteristics of arthropods

Arthropods are a group of animals with distinctive characteristics. Their main characteristics are as follows:

1. The body is divided into different segments: Arthropods usually consist of three different body segments: head, thorax and abdomen. Their bodies are surrounded by multiple hardened exoskeletons, or "shells," that are connected to joints on the body and allow the arthropods to perform flexible movements.

2. Have six legs: With a few exceptions, most arthropods have six legs, each of which is attached to a joint and can bend and extend freely.

3. There are compound eyes and simple eyes: Arthropods may have multiple compound eyes (like cicadas), or one or more simple eyes (like spiders).

4. Respiratory system: The respiratory system of arthropods is open, that is, oxygen enters the body through the trachea and carbon dioxide is expelled from the stomata.

5. Reproductive methods: The reproductive methods of arthropods are very diverse, including oviparous, viviparous and ovoviviparous.

In short, arthropods have distinctive features such as hardened exoskeletons, segmented bodies, six legs, and diverse reproductive methods.

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