OnlineCBT
Biology · BIODIVERSITY AND CONSERVATION
Practice questions & answers
Find a question, read its answer and explanation, then practise related questions.
Biology BIODIVERSITY AND CONSERVATION · Clear filters
65 questions
Biology · BIODIVERSITY AND CONSERVATION
If the species-area relationship is analyzed across very large areas such as entire continents, the slope of the regression line (\( Z \) value):
Read answer →Biology · BIODIVERSITY AND CONSERVATION
Out of the 34 globally identified biodiversity hotspots, which three hotspots specifically cover regions of exceptionally high biodiversity in India?
Read answer →Biology · BIODIVERSITY AND CONSERVATION
India accounts for 2.4% of the world's land area. Its contribution to global species diversity is approximately:
Read answer →Biology · BIODIVERSITY AND CONSERVATION
Match List-I with List-II: List-I (Cause / Term) List-II (Associated Example / Phenomenon) A Over-exploitation I Steller's sea cow extinction B Alien species invasion II Extinction of cichlid fish in Lake Victoria C Co-extinction III Plant-pollinator mutualism loss D Habitat loss & fragmentation IV Clearing of Amazon rain forest for soyabean Choose the correct answer from the options given below:
Read answer →Biology · BIODIVERSITY AND CONSERVATION
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The IUCN Red List (2004) documents the extinction of 784 species in the last 500 years. Reason (R): Human colonization of islands and ongoing anthropogenic activities are major drivers of contemporary biodiversity loss. In the light of the above statements, choose the correct answer from the options given below:
Read answer →Biology · BIODIVERSITY AND CONSERVATION
In the species-area relationship equation \( \log S = \log C + Z \log A \), what does the regression coefficient '\( Z \)' represent when analyzing very large areas such as entire continents?
Read answer →Biology · BIODIVERSITY AND CONSERVATION
In Paul Ehrlich's 'rivet popper hypothesis', the removal of rivets from the wings of an airplane represents:
Read answer →Biology · BIODIVERSITY AND CONSERVATION
Given below are two statements: Statement I: The number of fungi species in the world is more than the combined total of the species of fishes, amphibians, reptiles, and mammals. Statement II: Insects are the most species-rich taxonomic group among animals, making up more than 70 percent of all animal species. In the light of the above statements, choose the most appropriate answer from the options given below:
Read answer →Biology · BIODIVERSITY AND CONSERVATION
Given below are statements regarding the arguments for biodiversity conservation: (A) More than 25 percent of the drugs currently sold in the market worldwide are derived from plants. (B) The Amazon forest produces an estimated 20 percent of the total oxygen in the Earth's atmosphere through photosynthesis. (C) The ethical argument emphasizes that every species has an intrinsic value, even if it has no economic value to humans. (D) Bioprospecting falls under the broadly utilitarian category because it deals with intangible aesthetic values. Choose the correct answer from the options given below:
Read answer →Biology · BIODIVERSITY AND CONSERVATION
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The Western Ghats have a lower amphibian species diversity than the Eastern Ghats. Reason (R): Norway possesses greater ecological diversity than India. In the light of the above statements, choose the correct answer from the options given below:
Read answer →Biology · BIODIVERSITY AND CONSERVATION
Given below are two statements: Statement I: Species diversity increases progressively as one moves from the equator towards the polar regions. Statement II: Colombia, located near the equator, has nearly 1,400 species of birds, while Greenland at 71° N has only 56 species. In the light of the above statements, choose the most appropriate answer from the options given below:
Read answer →Biology · BIODIVERSITY AND CONSERVATION
Consider the following statements regarding the species-area relationship developed by Alexander von Humboldt: (A) On a logarithmic scale, the relationship is a rectangular hyperbola. (B) The value of \( Z \) lies in the range of 0.1 to 0.2 when analyzing small regions regardless of taxonomic group. (C) Frugivorous birds and mammals across tropical forests of different continents show a \( Z \) value of 1.15. (D) A steeper slope (higher \( Z \) value) indicates that species richness increases more rapidly with increasing area. Choose the correct answer from the options given below:
Read answer →Biology · BIODIVERSITY AND CONSERVATION
Which of the following techniques represents an advanced, modern development in ex situ conservation that allows long-term preservation of gametes of threatened species in viable and fertile conditions?
Read answer →Biology · BIODIVERSITY AND CONSERVATION
According to global assessments of species facing extinction threat, arrange the following taxonomic groups in strictly descending order of their extinction vulnerability percentage: (I) Amphibians (II) Gymnosperms (III) Mammals (IV) Birds
Read answer →Biology · BIODIVERSITY AND CONSERVATION
The colonization of tropical Pacific Islands by humans has led to the documented extinction of more than:
Read answer →Biology · BIODIVERSITY AND CONSERVATION
