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Test: Biodiversity - UPSC MCQ


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10 Questions MCQ Test - Test: Biodiversity

Test: Biodiversity for UPSC 2024 is part of UPSC preparation. The Test: Biodiversity questions and answers have been prepared according to the UPSC exam syllabus.The Test: Biodiversity MCQs are made for UPSC 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Biodiversity below.
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Test: Biodiversity - Question 1
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What is the primary focus of genetic diversity within a species?

Detailed Solution for Test: Biodiversity - Question 1
Genetic diversity within a species primarily focuses on "adapting to changing environments." It allows a species to have variations in its genes, which can be beneficial when environmental conditions change. This diversity ensures that some individuals in the population will possess traits that are better suited to new or challenging conditions, increasing the species' chances of survival.
Test: Biodiversity - Question 2
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What does species diversity refer to in the context of biodiversity?

Detailed Solution for Test: Biodiversity - Question 2
Species diversity refers to "the variety of living organisms on Earth." It encompasses the richness of different species present in a given area or globally. This diversity reflects the differences in species' characteristics, behaviors, and ecological roles.
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Test: Biodiversity - Question 3
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What is meant by "beta diversity" in the measurement of biodiversity?

Detailed Solution for Test: Biodiversity - Question 3
"Beta diversity" in the measurement of biodiversity refers to "the diversity between different ecosystems." It measures how species composition changes when moving from one ecosystem to another. It helps assess variations in biodiversity across different habitat types.
Test: Biodiversity - Question 4
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In a food chain or web, what are green plants primarily referred to as?
Detailed Solution for Test: Biodiversity - Question 4
Green plants in a food chain or web are primarily referred to as "producers." They are capable of photosynthesis, converting sunlight, water, and carbon dioxide into energy-rich organic molecules, which serve as the foundation of the food chain by providing energy and nutrients to other organisms.
Test: Biodiversity - Question 5
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Why is it important to conserve biodiversity in the context of food chains?
Detailed Solution for Test: Biodiversity - Question 5
Conserving biodiversity is important to "maintain the integrity of food chains." Each species plays a specific role in food chains, and the removal of any species can disrupt the balance and functioning of these chains. Biodiversity conservation helps preserve the interconnected relationships among species in ecosystems.
Test: Biodiversity - Question 6
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What are some of the services provided by biodiversity related to ecosystem services?
Detailed Solution for Test: Biodiversity - Question 6
Biodiversity provides several ecosystem services, including "protection of water resources and nutrient recycling." These services contribute to the functioning and health of ecosystems, benefitting both the environment and human societies.
Test: Biodiversity - Question 7
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Which of the following is a man-made cause of biodiversity loss?
Detailed Solution for Test: Biodiversity - Question 7
Habitat destruction is a significant man-made cause of biodiversity loss. It occurs due to activities such as deforestation, urbanization, and industrial development, which result in the destruction of natural habitats critical for the survival of various species.
Test: Biodiversity - Question 8
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What is the primary purpose of botanical gardens?
Detailed Solution for Test: Biodiversity - Question 8
The primary purpose of botanical gardens is "to cultivate exotic plants." These gardens are scientific collections of various plant species from around the world and are essential for research, education, and the conservation of plant diversity.
Test: Biodiversity - Question 9
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What category of species classification indicates that a taxon is nearly threatened but not yet endangered or vulnerable?
Detailed Solution for Test: Biodiversity - Question 9
The category of species classification that indicates a taxon is "nearly threatened but not yet endangered or vulnerable" is "Near Threatened (NT)." This classification suggests that the species is at risk of becoming threatened in the near future.
Test: Biodiversity - Question 10
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Which organization issues the Red Data Book, a record of endangered species?
Detailed Solution for Test: Biodiversity - Question 10
The Red Data Book, a record of endangered species, is issued by the "International Union for Conservation of Nature (IUCN)." This publication provides information on the status and conservation needs of various species worldwide, helping guide conservation efforts.
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