One characteristic used to place organisms into kingdom is?

Answer 1

Structure of a nucleus- whether prokaryotic (then Kingdom Monera) or Eukaryotic. If Eukaryotic, then the next criterion to be used is Number of cells- if Unicellular, then the organisms are placed in Kingdom Protista. Further, if multicellular, then go for mode of nutrition. If holozoic, then it is Kingdom Animalia, if Autotrophic nutrition, then it is characteristic of Kingdom Plantae, and If nutrition is saprophytic or parasitic, then it characterizes Kingdom Fungi.
There are 6 Kingdoms today:

1. Plantae
2. Animalia
3. Protista
4. Fungi
5. Archaebacteria
6. Eubacteria.

The Kingdom that the organism is assigned to is based on:

• Its cell type (complex or simple)
• Its ability to make food or not
• The number of cells in the body

cell structure :)
Cell structure

Answer 2

Their ability to reproduce or where they live.

Answer 3

Method of reproduction