Describe the biological details, classification, habitat, and adaptive features of millipedes, prawns, crabs, and snails.

Here are the biological details for each organism:

• Millipede

  • Classification: Phylum Arthropoda, Class Diplopoda.
  • Habitat: Terrestrial, found in damp, dark places like under logs, leaf litter, and soil.
  • Adaptive features:
    • Segmented body with two pairs of legs per segment for locomotion.
    • Hard exoskeleton for protection.
    • Detritivorous diet (feeding on decaying plant matter).

• Prawn

  • Classification: Phylum Arthropoda, Subphylum Crustacea, Class Malacostraca, Order Decapoda.
  • Habitat: Aquatic, typically in marine or freshwater environments, often in shallow waters or estuaries.
  • Adaptive features:
    • Exoskeleton for protection and support.
    • Gills for respiration in water.
    • Swimmerets for swimming and carrying eggs.

• Crab

  • Classification: Phylum Arthropoda, Subphylum Crustacea, Class Malacostraca, Order Decapoda.
  • Habitat: Aquatic (marine and freshwater) and semi-terrestrial, found on shores, reefs, and in deep seas.
  • Adaptive features:
    • Thick, hard exoskeleton (carapace) for robust protection.
    • Claws (chelae) for defense, feeding, and fighting.
    • Gills for breathing underwater.

• Snail

  • Classification: Phylum Mollusca, Class Gastropoda.
  • Habitat: Terrestrial (damp environments), freshwater, and marine.
  • Adaptive features:
    • Muscular foot for slow, gliding locomotion.
    • Shell for protection and to prevent desiccation (drying out).
    • Radula for scraping food.

• Fish

  • Classification: Phylum Chordata, Subphylum Vertebrata, Superclass Pisces (includes classes like Chondrichthyes and Osteichthyes).
  • Habitat: Aquatic, found in both freshwater and marine environments.
  • Adaptive features:
    • Streamlined body shape for efficient movement through water.
    • Fins for propulsion, steering, and balance.
    • Gills for extracting oxygen from water.

• Toad

  • Classification: Phylum Chordata, Subphylum Vertebrata, Class Amphibia, Order Anura.
  • Habitat: Terrestrial, preferring damp environments like gardens and forests, but requires water for breeding.
  • Adaptive features:
    • Rough, warty skin for camouflage and reduced water loss.
    • Parotoid glands secrete toxins for defense.
    • Strong hind legs for hopping.

• Earthworm

  • Classification: Phylum Annelida, Class Oligochaeta.
  • Habitat: Terrestrial, living in soil rich in organic matter.
  • Adaptive features:
    • Segmented body for flexibility and burrowing.
    • Setae (bristles) on each segment for grip during movement.
    • Moist skin for cutaneous respiration (breathing through skin).

• Lizard

  • Classification: Phylum Chordata, Subphylum Vertebrata, Class Reptilia, Order Squamata.
  • Habitat: Terrestrial, found in diverse environments including deserts, forests, and grasslands; some are arboreal or semi-aquatic.
  • Adaptive features:
    • Scaly skin to prevent water loss in dry environments.
    • Ectothermic (cold-blooded), regulating body temperature by basking or seeking shade.
    • Claws for climbing and gripping.