Projecting from the middle of the lower lip of a caterpillar is a tiny tube or spinneret, through which silk is produced to make a cocoon within which the change to the pupa or chrysalis occurs.
(Projecting from the middle of the lower lip of a caterpillar; is; a tiny tube or spinneret, through which silk is produced) (silk; is produced; L:a tiny tube or spinneret) (the change to the pupa or chrysalis; occurs; L:a cocoon)
Projecting from the middle of the lower lip of a caterpillar silk the change to the pupa or chrysalis
is is produced occurs
a tiny tube or spinneret, through which silk is produced
L:a tiny tube or spinneret
L:a cocoon