Question

write short notes on the the following.
Book lungs of Arachinda.
Pectines of scorpions.

​

Answer 1

Answer:

Book lungs of Arachnida---Book lung, a form of respiratory organ found in certain air-breathing arachnid arthropods (scorpions and some spiders). This provides an extensive surface for the exchange of oxygen and carbon dioxide with the surrounding air. There are four pairs in scorpions and up to two in spiders.

Pectines of scorpions----The pectines are paired, ventromedial appendages that brush the substrate as the scorpion walks. This comb-like organ consists of a supportive spine and an array of teeth.

HOPE IT HELPS YOU...