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Structural Organisation in Animals

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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 correctly describes the location of some body parts in the earthworm Pheretima?
    1. Four pairs of spermathecae in 4 - 7 segments.
    2. One pair of ovaries attached at intersegmental septum of 14th and 15th segments.
    3. Two pairs of testes in 10th and 11th segments.
    4. Two pairs of accessory glands in 16 - 18 segments.
Correct Option: C

In Pheretima two pairs of testes sacs are situated in the 10th and 11th segments. Each testes sac of the 10th segment encloses a testes and a seminal funnel. Each testes sac of the 11th segment encloses a testes, a seminal vesicle and a seminal funnel.


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