How does Periplaneta conserve water? Explain in reference to excretion in Periplaneta.

Periplaneta conserves water by following means:

• Chitinous waxy cuticle prevents water loss from blood.
• Rectal papillae absorb water from undigested waste.
• Discontinuous ventilation prevents water loss.
• Malpighian tubules reabsorb water from uric acid, which is excreted in dry form.
• Periplaneta is a noctural Insect. Nocturnal habit also prevents water loss.