ecology quiz 2

term biodiversity is popularised by

• paul ehrlich

• david tilman

• edward wilson

• robert may

decrease in biodiversity in tropical country due to

• urbanisation

• population

• deforestation

• soil erosion

genetic diversity is shown by

• rauvolfia serpenyina

• rice

• mango

• all of above

resrpine chemical is obtained from

• roots of chinchona

• bark of chinchona

• roots of rauwolfia

• stem of rauwolfia

how many species of animal from india recorded from india

• twice of plant species

• half of plant species

• equal to fungi species

• both a and b

pattern of biodiversity affected by

• latitudinal gradient

• species area relationship

• both a and b

• none

according to rivet popper hypothesis which of the following is not comparable

• rivets- species

• airplane- ecosystem

• safety of flight- stability of ecosystem

• popping- origin of species

which of the below mentioned regions exhibit less seasonal variations

• tropics

• temperates

• alpines

• both a and b

approximately 50% of total world species are present in

• tropical rain forest

• temperate rain forest

• temperate decidous forest

• coral reef

world summit on sustainable development was held in

• johannesberg

• brazil

• north africa

• rio de janeirio