invertebrates

Arachnids:
- joint legged animals
- 8 legs
- two further pairs of appendages: adapted for feeding, defense, and sensory perception
- (pedipalps)
- (chelicerae)
- no antennae
- no wings
- two party body tamata : prosoma and opisthosoma
- carnivorous

Insects:
 - 6 legs
- three part body: head thorax abdomen
- three pairs of jointed legs
- compound eyes
- two pairs of antennae
- hatches from eggs
- 800,00 different types
wings located on thorax

Annelids:
- phyla of segmented worms
- multiple segments
- blood circulation within blood vessels
- can produce asexually
-9000 known species.
- soft bodied

http://www.ucmp.berkeley.edu/annelida/annelida.html
http://www.enchantedlearning.com/subjects/insects/printouts.shtml
http://www.everythingabout.net/articles/biology/animals/arthropods/arachnids/