Habitat loss and fragmentation is a very important cause of species extinction. The deforestation of tropical forests is expected to be the greatest cause of mass extinctions caused by human activity. Cutting down forests and hedgerows to provide agricultural land has increased. The loss of tropical forests, which holds 50% of the world's biodiversity proving to be the most significant threat to species in the modern age. This leads to fragmentation of habitats and species which require large habitats such as bears cannot survive if the area is too small. Related Theory The accelerated rate of species extinction that the world is facing now is largely due to human activities. This is due to Habitat loss and fragmentation, overexploitation, introduction or invasion of alien species, pollution, climate change and co-extinction.
Number of wildlife is continuously decreasing. What is the main reason of this?
NEET UG 2002 — Botany Biodiversity and its Conservation
Number of wildlife is continuously decreasing. What is the main reason of this?
Held on 30 Apr 2002 · Verified 9 Jul 2026.
Options
- A
Predation
- B
Cutting down of forest
- C
Destruction of habitat
- D
Hunting
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NEET UG Biodiversity and its Conservation in other years
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Match List I with List II: $\begin{array}{|l|l|l|l|}\hline & \text{List - I} & & \text{List - II} \\\hline \text{A}. & \text{The Evil Quartet} & \text{(i)} & \text{Cryopreservation} \\\hline \text{B.} & \text{Ex situ conservation} & \text{(ii)} & \text{Alien species invasion} \\\hline \text{C.} & \text{Lantana camara} & \text{(iii)} & \text{Causes of biodiversity losses } \\\hline \text{D.} & \text{Dodo} & \text{(iv)} & \text{Extinction} \\\hline\end{array}$ Choose the option with all correct matches.
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