Biodiversity

সারসংক্ষেপ

Biodiversity is the variety of life at genetic, species and ecosystem levels.

মূল ধারণা

ব্যবস্থাটি বুঝুন

Biodiversity is the variety of life at genetic, species and ecosystem levels.

কেন ও কীভাবে ঘটে

কারণ ও প্রেক্ষাপট

Biodiversity is the variety of life at genetic, species and ecosystem levels. The governing relationship is: Evolution, habitat diversity, isolation, disturbance and human pressure shape biodiversity across space and time.

কীভাবে কাজ করে

Evolution, habitat diversity, isolation, disturbance and human pressure shape biodiversity across space and time.

মূল তথ্য

• Genetic diversity supports adaptation within species.
• Species richness counts species; evenness describes relative abundance.
• Habitat loss, invasive species, overexploitation, pollution and climate change are major threats.

গুরুত্বপূর্ণ পরিভাষা

• species richness
• genetic diversity
• endemism
• invasive species
• ecosystem diversity

উদাহরণ ও কেস স্টাডি

• The Sundarbans supports specialized mangrove species and wildlife adapted to saline tidal conditions.

কারণ ও উপাদান

• Key components: species richness, genetic diversity, endemism.
• Evolution, habitat diversity, isolation, disturbance and human pressure shape biodiversity across space and time.

প্রভাব ও গুরুত্ব

• Species richness counts species; evenness describes relative abundance.
• Habitat loss, invasive species, overexploitation, pollution and climate change are major threats.
• Application: The Sundarbans supports specialized mangrove species and wildlife adapted to saline tidal conditions.

ভূগোলের সাথে সংযোগ

The Sundarbans supports specialized mangrove species and wildlife adapted to saline tidal conditions. This illustrates how biodiversity varies by location, scale or environmental context.

বাংলাদেশের সাথে সংযোগ

Bangladesh's mangroves, wetlands, hill forests and coastal habitats hold biodiversity under pressure from conversion, pollution and climate stress.

BCS প্রিলিমিনারির তথ্য

• Genetic diversity supports adaptation within species.
• Species richness counts species; evenness describes relative abundance.
• Habitat loss, invasive species, overexploitation, pollution and climate change are major threats.

BCS লিখিত বিশ্লেষণ

একটি বিশ্লেষণধর্মী উত্তর তৈরি করুন

• Biodiversity is the variety of life at genetic, species and ecosystem levels.
• Evolution, habitat diversity, isolation, disturbance and human pressure shape biodiversity across space and time. Use the sundarbans supports specialized mangrove species and wildlife adapted to saline tidal conditions. as a named application in a comparative answer.

প্রচলিত ভুল ধারণা

• Biodiversity is broader than the number of species.
• An exotic species is not automatically invasive; invasion requires harmful establishment and spread.

দ্রুত রিভিশন

• Biodiversity
• Genetic diversity supports adaptation within species.
• Species richness counts species; evenness describes relative abundance.
• species richness / genetic diversity
• Definition → process → spatial example