Question

Zoochlorellae or zooxanthellae of coloured Hydra occur in

• A. Epithetio-muscular cells
• B. Nutritive cells
• C. Mesogloea
• D. Interstitial cells

Answer 1

The correct option is B Nutritive cells

Hydra can form a symbiotic relationship with algae such as Zoochlorellae which is a green algae zooxanthellae which are referred to as brown algae. The relationship will assist in the benefit to both the organisms. The nutritive cells harbour of these algae helps in the growth of the host organism in a nutrient-poor environment.

So, the correct option is 'Nutritive cells'