Explanation

• Birds have hollow (pneumatic) bones to make their skeleton lighter, aiding flight efficiency.
• Hollow bones reduce overall body weight without sacrificing strength.
• This adaptation is crucial for sustained flying and gliding.

Last verified on 09-02-2026

Explanation

• Stomata are small openings on leaf surfaces for gas exchange.
• Present more on the lower side to reduce water loss (transpiration).
• Helps plants retain moisture while still taking in CO₂ for photosynthesis.
• Upper side has fewer stomata to avoid direct sun exposure.
• Found in most dicot leaves.

Last verified on 07-02-2026

Explanation

The world’s fastest bird is the Peregrine Falcon (Falco peregrinus)

It is the fastest animal on the planet

Reaching diving speeds (hunting stoop) of over 320 km/h (200 mph),

Additional information:

Fastest Running Bird: Ostrich (up to 43 mph). 

Explanation

• Arachnids are a class of arthropods including spiders, scorpions, ticks, and mites.
• They have 4 pairs of legs (total 8 legs).
• Arachnids lack antennae and wings.
• Example: Spider, Scorpion, Tick, Mite, Harvestman

Last verified on 07-02-2026

Explanation

• A predator is a free-living animal that catches and kills another animal.
  • It feeds on other organisms for energy.
  • This relationship is called predation.
  • Common in natural food chains.
  • Predators help control prey populations.
  • Example: Lion, Tiger, Wolf, Eagle, Shark

Last verified on 06-02-2026