Explanation

 Camouflage is the blending of animals into their environment. 

Examples include the leopard's spotted coat, the battledress of a modern soldier

Explanation

The bacterial cell wall is peptidoglycan,

It is also known as murein or mucopeptide.

This complex polymer of sugars and amino acids forms a rigid, cross-linked structure

That protects the cell and is a target for antibiotics like penicillin.

Explanation

Gizzard Function: Like human teeth, the muscular gizzard in an earthworm is responsible for physically grinding

Scientific classification

• Kingdom: Animalia
• Phylum: Annelida
• Clade: Pleistoannelida
• Clade: Sedentaria
• Class: Clitellata
• Order: Opisthopora
• Suborder: Lumbricina

Explanation

The primary characteristic of local populations in the same area 

That they are conspecific—meaning they belong to the same species

Same species—and share a defined, contiguous geographic area,

Where they are more likely to interbreed with each other than with individuals from other areas

Last updated 17-02-2026

Explanation

Ichthyology is the study of fish. 

It is a branch of zoology that deals with the biology, taxonomy, behavior, physiology, ecology, and anatomy of various fish species

Additional information:

• Agrostology: Study of Grasses 
• Agronomy: soil management and crop production 
• Odontology: study of teeth 
• Arthrology: Study of joints 
• Nephrology: study of kidneys
• Hematology: Study of blood  
• Dermatology:  Study of skin 

Last updated 17-02-2026

Explanation

Explanation

• Insects are part of the class Insecta in the animal kingdom.
• They have 3 body parts: head, thorax, and abdomen.
• Most insects have 6 legs and 4 wings.
• They are the largest group of animals on Earth.
• Examples: Butterfly, Bee, Grasshopper, Dragonfly.

Last verified on 12-02-2026

Explanation

• Rhizobium bacteria live in root nodules of leguminous plants (e.g., peas, beans).
  • They convert atmospheric nitrogen (N₂) into ammonia (NH₃), a usable form for plants.
  • This process is called nitrogen fixation.
  • It enriches soil fertility naturally.
  • Essential for plant growth and agriculture.

Last verified on 12-01-2026

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