Question

*** Please be concise and give full explanation ***

What kinds of evidence do scientists use to categorize and classify living things?

Answer 1

The members of each group of living things share a set of special features unique to that group.

For example- plants contain a chemical called chlorophyll that they use to make their own food(it also makes them green) . Every member of the plant kingdom shares this characteristics.

SCIENTISTS ARE ALWAYS LOOKING FOR THESE CHARACTERISTICS OR OBSERVABLE FEATURES WHICH ALLOW THEM TO GROUP DIFFERENT SPECIES TOGETHER AND SEE HOW THEY ARE RELATED TO EACH OTHER.

By comparing these features of different animals they have been able to classify them further, dividing eacch of the kingdoms into smaller groups. Each kingdom is divided into smaller groups.

Each level of group has a special name :

• PHYLUM
• ORDER
• CLASS
• FAMILY
• GENUS
• SPECIES  

By examining its observable features scientists classify living things . For example- RED SQUIRREL classification:

• kingdom: animalia
• phylum:chordata
• class:mammalia
• order: rodentia
• family :sciuridae
• genus :sciurus
• species: vulgaris