NEET 2025 MCQ with Answer Explanation : “Biodiversity and conservation”.

91. Which type of biodiversity involves the variety of ecosystems found in a particular region?
    a) Species diversity
    b) Genetic diversity
    c) Ecosystem diversity
    d) Functional diversity

Answer: c) Ecosystem diversity

Explanation: Ecosystem diversity refers to the variety of ecosystems, such as forests, grasslands, and wetlands, within a region, each supporting distinct communities of organisms.

92. Which of the following is a potential consequence of climate change on biodiversity?
    a) Increased habitat stability
    b) Reduced extinction rates
    c) Shifts in species distribution
    d) Improved ecosystem resilience

Answer: c) Shifts in species distribution

Explanation: Climate change can cause shifts in species distribution as organisms move to new areas with more favorable environmental conditions, often leading to disruptions in ecosystems.

93. Which of the following is an example of species diversity?
    a) The different breeds of cattle
    b) The variety of species in a coral reef
    c) The range of habitats in a forest
    d) The genetic variation within a population of dogs

Answer: b) The variety of species in a coral reef

Explanation: Species diversity refers to the number of different species in a given area or ecosystem, such as the variety of fish, corals, and invertebrates in a coral reef.

94. Which of the following strategies is effective in preventing the introduction of invasive species?
    a) Encouraging monoculture farming
    b) Implementing quarantine measures
    c) Promoting habitat destruction
    d) Increasing the use of pesticides

Answer: b) Implementing quarantine measures

Explanation: Quarantine measures help prevent the accidental introduction of invasive species by controlling the movement of organisms across regions, reducing the risk of ecosystem disruption.

95. The Red Data Book is published by:
    a) UNESCO
    b) IUCN
    c) WWF
    d) UNEP

Answer: b) IUCN

Explanation: The International Union for Conservation of Nature (IUCN) publishes the Red Data Book, which provides information on the conservation status of species globally, highlighting those at risk of extinction.

96. Which of the following is an advantage of ecosystem diversity?
    a) It reduces competition among species.
    b) It promotes the stability and resilience of ecosystems.
    c) It leads to the extinction of weaker species.
    d) It eliminates the need for genetic diversity.

Answer: b) It promotes the stability and resilience of ecosystems.

Explanation: Ecosystem diversity enhances stability and resilience by supporting a wide range of species, habitats, and ecological processes, enabling ecosystems to withstand disturbances.