1. Arthropoda
The arthropods

2. Most successful animals on Earth…
Over 75% of all animals are arthropods!
Have bilateral symmetry with 3 tissue layers and
organs/systems

3. They have a true coelom type of body cavity
with a mouth and anus
They eat everything!
They reproduce sexually

4. These organisms live everywhere!

5. Diverse and
most successful
group of
invertebrates
The body is
divided into 2
or 3 sections

6. They have
compound
eyes!!!

7. They undergo metamorphosis

8. Has a nervous system with brain and nerve
cords
Has an open-circulatory system with heart and
arteries but no veins

9. Named for their jointed appendages
Hard exoskeleton for protection; most must
molt to grow