Question

How are the criteria for deciding divisions in plants different from the criteria for deciding the subgroups among animals?

Answer 1

Plant division norms:

1. Differentiated/Undifferentiated plant assemblage structure
2. Vascular tissue presence/absence with and without seeds
3. Naked seeds/seeds contained within fruits

Division norms in animals:

1. Subdivisions are made based on structural differences in organisms
2. Viviparity and oviparity of the animals
3. Presence of complex or simple notochord
4. Presence of specialised structures such as wings, gills, etc.

Plant division criteria	Animal division criteria
Classification is based on morphology of plant body.	Classification is based on the design of body of animals.
Division of plants is based on differentiation zones present in plants	The division of animals relies on evolutionary changes in structure and unique structural features.