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Advanced Zoology

Animal Kingdom
Structural Organisation in Animals
Digestion and Absorption
Breathing and Exchange of Gases
Body Fluids and Circulation
Excretory Products and their Elimination
Locomotion and Movement
Neural Control and Coordination
Chemical Coordination and Integration
Human Reproduction
Human Health and Disease
Biotechnology Principles and Processes
Biomolecules (Zoology)
Evolution (Zoology)
Biotechnology and its Applications
Reproductive Health
  1. Which one of the following animals possesses nerve cells but no nerves?
    1. Hydra
    2. Tapeworm
    3. Earthworm
    4. Frog’s tadpole
Correct Option: A

Nerve cells are present in the form of network of neurons in Hydra but the brain and nerves are absent.


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