Blue green algae and archaebacteria
Aristotle classified animals into two groups based on their red blood and bloodless characteristics. He also classified plants into three groups based on their size and complexity: trees, shrubs, and herbs.
The bread and cereals group
this group is called invertebrates and vertebrates :)
Toast would be in the bread and cereals group. Butter and jelly would be in the "discretionary calories" group; non essential (but often fun!) calories.
Biomaterials can be classified into two main groups: synthetic and natural biomaterials.
Biomaterials can be classified into two main groups: synthetic and natural biomaterials.
Biomaterials can be classified into two main groups: synthetic and natural biomaterials
Biomaterials can be classified into two main groups: synthetic and natural biomaterials
Biomaterials can be classified into two main groups: synthetic and natural biomaterials
Biomaterials can be classified into two main groups: synthetic and natural biomaterials
Carolus Linnaeus developed the first widely accepted system of biological classification. He classified organisms into two groups - plants and animals - based on their physical characteristics.