Related InterviewSolutions

• How does the vegetal stratification of an ecosystem influence the biological diversity?
• What are some economic applications that can be generated by very biodiverse ecosystems? 
• What are the main causes of the loss of biological diversity nowadays?
• Consider the following statements : 1. The boundaries of a National Park are defined by legislation. 2. A Biosphere Reserve is declared to conserve a few specific species of flora and fauna. 3. In a Wildlife Sanctuary, limited biotic interference is permitted. Which of the statements given above is / correct ? (a) 1 only (b) 2 and 3 (c) 1 and 3 (d) 1, 2 and 3
• Consider the following statements: 1. The boundaries of a National Park are defined by legislation. 2. A Biosphere Reserve is declared to conserve a few specific species of flora and fauna. 3. In a Wildlife Sanctuary, limited biotic interference is permitted. Which of the statements given above is / correct ? (a) 1 only (b) 2 and 3 (c) 1 and 3 (d) 1, 2 and 3
• In the Lower Himalayan Mountains, several species of salamander, an amphibian, live in or near a stream. The largest species lives in the stream and along its edges, a smaller species lives on land within a meter or two of the stream, and a smaller species lives about 3-5 meters away from the stream. In this region, these three salamander species are using (a) different niches within the same habitat (b) the same niche and microhabitat (c) the same landscape but different ecosystems (d) the same habitat but different niches
• The risk of introducing a natural enemy to control an invasive species is that (a) it might drive the invasive species to extinction. (b) the natural enemy might also become a pest. (c) the natural enemy might evolve into a new species (d) the natural enemy may introduce genetic diversity into the invasive species. 
• Invasive species are dangerous because (a) they are almost all predators, disturbing ecological relationships by eating other species. (b) they carry viruses that spread disease in new ecosystems. (c) the native species have not evolved with these organisms. (d) they tend to be secretive, going unnoticed in their new ecosystems.
• Protection and preservation of endangered species away from their natural habitat under human care in zoos, nurseries and laboratories is known as (a) In-situ conservation (b) Ex-situ conservation (c) Biodiversity conservation (d) None of the above
• Within biological communities, some species are important in determining the ability of a large number of other species to persist in the community. Such species are called (a) Keystone species (b) Allopatric species (c) Sympatric species (d) Threatened species