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Biology
Biodiversity and Conservation
95 questions from 36 papers, each with its answer.
- 95 questions
- 36 papers
- 2.69% of Biology
Ex-situ Conservation Strategies
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The type of conservation in which the threatened species are taken out from their natural habitat and placed in special setting where they can be protected and given special care is called;Taking threatened species out of their natural habitat and protecting them in special settings (zoos, botanical gardens, wildlife safari parks, seed banks) is ex-situ conservation. Ex-situ conservation is not listed among the options; it is a strategy of biodiversity conservation, so the answer is 'Biodiversity conservation'. (Semi-conservative refers to DNA replication, and in-situ conservation protects species within their natural habitat.)
Latitudinal Gradient in Species Richness
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Tropical regions show greatest level of species richness because A. Tropical latitudes have remained relatively undisturbed for millions of years, hence more time was available for species diversification. B. Tropical environments are more seasonal. C. More solar energy is available in tropics. D. Constant environments promote niche specialization. E. Tropical environments are constant and predictable. Choose the correct answer from the options given below:A. Tropical latitudes remained relatively undisturbed for millions of years, giving more time for species diversification – correct. B. Tropical environments are less seasonal, not more – incorrect. C. More solar energy is available in the tropics, contributing to higher productivity – correct. D. Constant environments promote niche specialisation – correct. E. Tropical environments are relatively constant and predictable – correct. So A, C, D and E only are correct.
Causes of Biodiversity Loss
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These are regarded as major causes of biodiversity loss: A. Over exploitation B. Co-extinction C. Mutation D. Habitat loss and fragmentation E. Migration Choose the correct option:The major causes of biodiversity loss (the 'Evil Quartet') are: habitat loss and fragmentation, over-exploitation, alien species invasions and co-extinctions. Mutation and migration are not major causes of biodiversity loss. So A, B and D only are correct.
Organisations Tracking Endangered Species
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List of endangered species was released by-:The IUCN (International Union for Conservation of Nature and Natural Resources) maintains and releases the Red List (Red Data Book), which lists threatened and endangered species.
Contributions of Ecologists to Biodiversity Theory
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Match List-I with List-II regarding ecologists and their contributions to biodiversity science.
Pick the matching item from Column II for each row.
Column I
- A. Robert May
- B. Alexander von Humboldt
- C. Paul Ehrlich
- D. David Tilman
Column II
- I. Species area relationship
- II. Long term ecosystem experiment using outdoor plots
- III. Global species diversity at about 7 million
- IV. Rivet popper hypothesis
Correct answer: A → III, B → I, C → IV, D → II
Robert May – estimated global species diversity at about 7 million Alexander von Humboldt – species-area relationship Paul Ehrlich – rivet popper hypothesis David Tilman – long-term ecosystem experiments using outdoor plots Correct match: A-III, B-I, C-IV, D-II.
That is every question in Biodiversity and Conservation for this filter.
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