Tuesday, January 11, 2011

Arthropods - Insecta (Insects)

http://www.mun.ca/biology/scarr/Arthropoda.htm


Structural features:
- Have 3 pairs of joined legs
- Have 3 body segments (Head, Thorax, Abdomen)
- Have compound eyes
- Have a pair of antennae

Reproduction:
- Most have 3 - 4 stages of life cycles
- Most lay eggs

Other features:
- All are cold-blooded
- Some are useful that helps on pollination, produce honey & silk
- Some are harmful like pests and disease-spreading

Done by: Idris
Group 2 - Lionel, Karan, Abilash, Darryl
(Group 4 - Arthropods, Crustaceans, Myriapods, Arachnids, Insecta

3 comments:

  1. Insecta needn't always have 3 body segments. Eg, silk worm (Bombyx Mori). Its class is still Insecta, but it has many body parts and legs

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  2. Insects are invertebrates, meaning that they have no backbone. Most species of insect have a hard outer shell which protects the inside of the insect.

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  3. @ Su En: Silk worm is not a species itself. It is the young of the silk moth which is an insect with 3 body segments.

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