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The destruction and division of natural habitats due to unchecked human activities like deforestation, mining, and urbanization disrupts ecosystems. This fragmentation hinders the movement of migratory species and reduces genetic exchange between populations, ultimately threatening species survival. What is the consequence of such habitat changes?

1. The division of habitats has no impact on migratory species.
2. The fragmentation of habitats results in a reduction in species populations.
3. Habitat fragmentation enhances genetic exchange among populations.
4. Human activities are not responsible for habitat destruction and fragmentation.

Correct answer: The fragmentation of habitats results in a reduction in species populations.

Solution

Habitat loss and fragmentation disrupt ecosystems, reduce genetic exchange, and lead to a decline in species, as stated in the question. This makes option B correct.

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