Some are classified by WHERE they are found.
Classes are divided into orders, then families and then genera and finally species.
They are divided into vascular and nonvascular (veins or tubes in roots, stems, and leaves).
They do NOT make their own food.
Mosty unicellular microbes, microscopic organisms and multicellular organisms.
They use sunlight to make their own food.
The first division of this group is called a phylum.
Some RESEMBLE plants and others animals.
They can live in ALMOST any enviroment (soil, air water and even your body)
They can causes diseases but some break down dead organisms (natural recyclers).
They are classified by their shapes (rods, spheres, or spirals).
They often live in extreme conditions (for example in volcanic vents).
