Avertebrata - Protozoa

Leewenhoek
First observed protozoa in 1675, animalcules

Protozoa - 64,000 sp
- Animal like
Unicellular
- Some are colonial
Motile
No cell wall
Reproduce
- Sexual
- Asexual
Nutrition
- Heterotrophic
- Autotrophic

complete klik link :
1. Protozoa
2. Protozoa2