Biodiversity and Conservation (last 10 years) Flashcards
- Which of the following regions of the globe exhibits highest species diversity? (2020)
a. Madagascar
b. Himalayas
c. Amazon forests
d. Western ghats of India
c. Amazon forests
- According to Robert May, the global species diversity is about: (2020)
a. 20 million
b. 50 million
c. 7 million
d. 1.5 million
c. 7 million
- According to Alexander von Humboldt: (2020-Covid)
a. Species richness increases with increasing area, but only up to limit
b. There is no relationship between species richness and area explored
c. Species richness goes on increasing with increasing area of exploration
d. Species richness decreases with increasing area of exploration
a. Species richness increases with increasing area, but only up to limit
- Alexander Von Humboldt described for the first time: (2017-Delhi)
a. Ecological Biodiversity
b. Laws of limiting factor
c. Species area relationships
d. Population Growth equation
c. Species area relationships
- Given below is the representation of the extent of global diversity of invertebrates.
What groups the four portions (A-D) represent respectively? (2014)
insert an image
A B C D
a. Insects Molluscs Crustaceans Other animal groups
b. Insects Crustaceans Other animal groups Molluscs
c. Crustaceans Insects Molluscs Other animal groups
d. Molluscs Other animal groups Crustaceans Insects
A B C D
a. Insects Molluscs Crustaceans Other animal groups
- Which of the following represent maximum number of species among global biodiversity? (2013)
a. Mosses and Ferns
b. Algae
c. Lichens
d. Fungi
d. Fungi
- Habitat loss and fragmentation, over exploitation, alien species invasion and co-extinction are causes for: (2022)
a. Natality
b. Population explosion
c. Competition
d. Biodiversity loss
d. Biodiversity loss
- Which of the following is the most important cause for animals and plants being driven to extinction? (2019)
a. Habitat loss and fragmentation
b. Drought and floods
c. Economic exploitation
d. Alien species invasion
a. Habitat loss and fragmentation
- Red list contains data or information on: (2016 - II)
a. Threatened species
b. Marine vertebrates only
c. All economically important plants
d. Plants whose products are in international trade
a. Threatened species
- Which of the following is correctly matched? (2016 - II)
a. Parthenium hysterophorus – Threat to biodiversity
b. Stratification – Population
c. Aerenchyma – Opuntia
d. Age pyramid – Biome
a. Parthenium hysterophorus – Threat to biodiversity
- Which of the following is the most important cause of animals and plants being driven to extinction? (2016 - I)
a. Over-exploitation
b. Alien species invasion
c. Habitat loss and fragmentation
d. Co-extinctions
c. Habitat loss and fragmentation
- The organisation which publishes the Red List of species is: (2014)
a. WWF
b. ICFRE
c. IUCN
d. UNEP
c. IUCN
- A species facing extremely high risk of extinction in the immediate future is called: (2014)
a. Extinct
b. Vulnerable
c. Endemic
d. Critically Endangered
d. Critically Endangered
- Which of the following is not a method of ex situ conservation? (2022)
a. Cryopreservation
b. In vitro fertilization
c. National Parks
d. Micropropagation
c. National Parks
- In-situ conservation refers to: (2022)
a. Conserve only extinct species
b. Protect and conserve the whole ecosystem
c. Conserve only high risk species
d. Conserve only endangered species
b. Protect and conserve the whole ecosystem