Many arachnids have glands, the semi-liquid secretions of which turn into spider webs when exposed to air.

Many arachnids have glands, the semi-liquid secretions of which turn into spider webs when exposed to air. How important is the use of the web in their life?

1) spiders weave trapping nets from the web, with which they catch their prey; 2) female spiders braid the laid eggs with cobwebs, protecting them from adverse external conditions; 3) young spiders use long spider threads to move by the wind, which contributes to their dispersal.