Arthropods are insects, spiders, crustaceans, scorpions, and centipedes. They have been on the earth for more than 500 million years!
Chelicerates: this group includes spiders and scorpions like this one....
The second group is Crustaceans which include about 50,000 species of lobsters and crabs. Most crustaceans live in the water like this one.....
The next group is called Hexapods and includes insects. The body of a hexapod is divided into three sections, a head, thorax, and abdomen like this one.....
And finally there are myriapods... more than 13,000 species of millipedes and centipedes.. like this one .....
and transform into adults like this....
Click on this link to discover how to make these fun cakes...
http://familyfun.go.com/recipes/cooking-with-kids/butterfly-banana-cupcakes-864728/