Free Man and His Environment MCQs with Answers
382 Man and His Environment MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Ecosystems include biotic and abiotic components, food chains and webs, energy flow, nutrient cycles, populations and ecological relationships. Pollution and conservation cover air, water, soil and noise pollution, their effects on organisms, biodiversity loss, protected areas, sustainable resource use and methods for reducing environmental damage.
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Read the Man and His Environment notesFree MDCAT chapter notes with key terms382 questions · page 11 of 20
- A. Laws of limiting factor
- B. Species area relationships.
- C. Population growth equation
- D. Ecological biodiversity.
Explanation: Alexander von Humboldt described species-area relationship for the first time.
Correct answer: Species area relationships.- A. Buffer zone
- B. Transition zone
- C. Restoration zone
- D. Core zone
Explanation: The core zone or Natural zone area of a biosphere reserve is an undisturbed and legally protected ecosystem.
Correct answer: Core zone- A. 17
- B. 25
- C. 34
- D. 43
Explanation: Biodiversity hotspots are a method to identify those regions of the world where attention is needed to address biodiversity loss and to…
Correct answer: 34- A. All economically important plants
- B. Plants whose products are in international trade
- C. Threatened species
- D. Marine vertebrates only.
Explanation: A red data book or red list is a catalogue of taxa facing risk of extinction. Red data book or red list was initiated in 1963.
Correct answer: Threatened species205. Which of the following is the most important cause of animals and plants being driven to extinction?
- A. Habitat loss and fragmentation
- B. Co-extinctions
- C. Overexploitation
- D. Alien species invasion
Explanation: Destruction of natural habitats causes the most serious threat to biodiversity.
Correct answer: Habitat loss and fragmentation- A. In situ conservation by sacred groves
- B. In situ cryo-conservation of biodiversity
- C. In situ conservation of biodiversity
- D. Advanced ex-situ conservation of biodiversity.
Explanation: Cryopreservation is an advanced method of ex-situ conservation. It involves preservation at -196°C in liquid nitrogen.
Correct answer: Advanced ex-situ conservation of biodiversity.- A. National park
- B. Seed bank
- C. Wildlife sanctuary
- D. Sacred grove.
Explanation: In situ (on-site) conservation is the conservation and protection of the whole ecosystem and its biodiversity at all levels, in order to…
Correct answer: Seed bank- A. Vulnerable
- B. Endemic
- C. Critically endangered
- D. Extinct.
Explanation: The taxon under the critically endangered category are facing a very high risk of extinction in the wild and can become extinct at any…
Correct answer: Critically endangered- A. ICFRE
- B. IUCN
- C. UNEP
- D. WWF.
Explanation: IUCN is the International Union of Conservation of Nature and Natural Resources which is now called the World Conservation Union (WCU).
Correct answer: IUCN- A. Shifting cultivation
- B. Botanical gardens
- C. Field gene banks
- D. Seed banks
Explanation: Ex situ conservation is the conservation of selected rare plants/animals in places outside their natural homes.
Correct answer: Shifting cultivation- A. IUCN
- B. UNEP
- C. WWF
- D. GEF
Explanation: The IUCN is the International Union of Conservation of Nature and Natural Resources which is now called the World Conservation Union…
Correct answer: IUCN- A. Generating environmental awareness
- B. Preventing soil erosion
- C. Year-round flow of water in rivers
- D. Conserving rare and threatened species.
Explanation: Sacred Grove is an example of in situ conservation of forests and wildlife especially rare and threatened species.
Correct answer: Conserving rare and threatened species.- A. Fungi
- B. Insects
- C. Birds
- D. Angiosperms
Explanation: Insects have the highest number of species found in nature. The Insecta is the largest class of animals. It has over 7,00,000 species.
Correct answer: Insects- A. Endangered species found in the region
- B. The diversity in the organisms living in the region
- C. Genetic diversity in the dominant species of the region
- D. Species endemic to the region.
Explanation: Biodiversity (biological diversity) is the existence of a wide variety of species (species diversity) or other taxa of plants, animals…
Correct answer: The diversity in the organisms living in the region- A. Wildlife sanctuary
- B. Seed bank
- C. Sacred grove
- D. National park
Explanation: Ex-situ conservation is the conservation of selected rare plants/animals in places outside their natural homes.
Correct answer: Seed bank- A. Argentina
- B. South Africa
- C. Brazil
- D. Sweden.
Explanation: Conservation of biodiversity is a collective responsibility of all nations.
Correct answer: South Africa- A. Sunderbans-Bengal Tiger
- B. Periyar-Elephant
- C. Rann of Kutch-Wild Ass
- D. Dachigam National Park-Snow Leopard
Explanation: Dachigam National Park is located only 22 kilometers from Srinagar, the capital city of the northern state of Jammu and Kashmir.
Correct answer: Dachigam National Park-Snow Leopard- A. National park
- B. Sanctuary
- C. Botanical garden
- D. Biosphere reserve
Explanation: In situ conservation means "on-site conservation". In situ conservation is the protection and management of important components of…
Correct answer: Botanical garden- A. By tissue culture method
- B. By creating a biosphere reserve
- C. By creating a botanical garden
- D. By developing a seed bank
Explanation: Biosphere reserves are multipurpose protected areas of different representative ecosystems that are meant for the conservation of…
Correct answer: By creating a biosphere reserve- A. Mammals
- B. Amphibians
- C. Reptiles
- D. Birds
Explanation: Amphibians are the group of vertebrates that comprise the highest number of endangered species.
Correct answer: Amphibians