The taxonomic key is one of the taxonomic tools in the identification and classification of plants and animals. It is used in the preparation of 

• Monographs

• Flora

• Both (a) and (b)

• None of these

Select the incorrect statement.

• Stellar’s sea cow and passenger pigeon got extinct due to over exploitation by men

• The mitotic convention on biological diversity was held in 1992

• Species diversity increase as we move away from the equator towards the poles

• Lantana and Eichhomia are invasive weed species in India

Core zone, buffer zone and manipulation zone. are found in

• National park

• Sanctuary

• Tiger reserve

• Biosphere reserve

 Largest tiger population is found in

• Sunderban national park

• Corbett national park

• Ranthambhore national park

• Kanha national park

Newly formed Biosphere Reserve of India (2013) is

• Pachmarhi

• Himalaya

• Cold desert

• Panna

Intermediate community between pioneer and climax communities is called

• Seral community

• Biotic community

• Temporary community

• Ecosphere

Animals undergoes inactive stage during winter, is known as

• aestivation

• hibernation

• adaptation

• acclimatization

148.

Decomposers are

• autotrophs

• autoheterotrophs

• organotrophs

• heterotrophs

What is the main cause for the extinction of some species in tropical forest?

• Deforestation

• Afforestation

• Pollution

• Soil erosion

Biological concept of species is mainly based on

• reproductive isolation

• morphological features only

• methods of reproduction only

• morphology and methods of reproduction