The most effective means of conservation of biodiversity is:
1. Remove predators
2. Preserve habitats
3. Vaccinate against disease
4. Census the species during breeding season

Alexander von Humbolt described for the first time 
(1) ecological biodiversity

(2) law of limiting factor

(3) species area relationships

(4) population growth equation 

Which one of the following is related to Ex-situ conservation of threatened animals and plants?

1. Wildlife Safari parks

2. Biodiversity hotspots

3. Amazon rainforest

4. Himalayan region

How many hotspots of biodiversity in the world have been identified till date by Norman Myers?
(1) 17

(2) 34

(3) 25

(4) 43

Which of the following is correctly matched?

(1) Arenchyma               -  Opuntia

(2) Age pyramid             -  Biome

(3) Parthenium hysterophorus - Threat to biodiversity

(4) Stratification             - Population

Red List contains data or information on
(1) all economically important plants

(2) plants whose products are in international trade

(3) threatened species

(4) marine vertebrates only

The species confined to a particular region and not found elsewhere is termed as

(1) keystone

(2) alien

(3) endemic

(4) rare

Cryopreservation of gametes of threatened species in viable and fertile condition can be referred to as

1. in situ conservation of biodiversity

2. advanced ex situ conservation of biodiversity

3. in situ conservation by sacred groves

4. in situ cryo-conservation of biodiversity

The organisation which publishes the Red List of species is

1. ICFRE  

2. IUCN  

3. UNEP  

4. WWF

Given below is the representation of the extent of global diversity of invertebrates. What groups the four portions (A-D) represent respectively ?