Biodiversity increases with habitat protection and reduced human interference

Steps:

• Define biodiversity as the variety of species in an ecosystem.
• Evaluate each option for its impact on species diversity.
• Identify actions that reduce habitat destruction or exploitation.
• Select the option that promotes species recovery without harm.

Why D is correct:

• Stopping fishing reduces overexploitation, allowing fish populations and associated marine species to recover, increasing overall species diversity per ecological succession principles.

Why the others are wrong:

• A: Urban development fragments habitats and displaces wildlife, reducing species variety.
• B: Selective breeding in a herd decreases genetic diversity within the species.
• C: Monoculture plantations replace diverse forest ecosystems with single-crop areas, lowering biodiversity.

Final answer: D