Question

Merits and demerits of two kingdom classification

Answer 1

Answer:

Merits

1) Plants and animals were divided into two kingdoms not abruptly but based upon specific characters.

2) It initiated systematic methods to classify the living organisms. More and more characters were, later, taken into consideration for development of better methods.

Demerits

1) This system of classification has not dealt upon the status of microorganisms in the living world Example – Viruses, Bacteria. The reason may be the organisms were not properly known by that time.

2) Certain organisms like slime molds and Euglena have characters similar to plants and animals. Slime molds are tiny plants without cell walls whereas Euglena is minute animals with green pigment system. Their position in the living world was, hence, uncertain.

3) The position of the prokaryotes was completely ignored.

Answer 2

Merits and demerits of two-kingdom classification-

1. Two-kingdom classification was coined by Carolus Linnaeus. Two wide groups were formed, the kingdom Plantae and Kingdom Animalia.

2. The merits of two-kingdom classification are listed below-

a. An unified classification was made that led to a better comprehension of various species and their native characteristics.

b. A structured organization of two different Kingdoms led to a classified system.

3. The demerits are listed below-

a. Organisms exhibiting features of both plants and animals were overlooked. Example-lichens.

b. The classification did not consider prokaryotes, photosynthetic, and non-photosynthetic organisms.