The worm cocoons on pine trees are from the Evergreen Bag Worm, more commonly called the North American Bag Worm. They spin their cocoon onto the trees making it look like pine cones. There may be up to 1000 eggs in a single cocoon.
Silk is animal protein, from silk worm cocoons.
they make silk of silk worm cocoons which silk worm are larvae
Silk worm is an animal that spins its cocoon. Humans harvest the cocoons and unravel the worm's work: this is silk, the fibre.
No, Pine Trees have pine needles, not leaves
Pine trees of course!
A plantation (area of trees) of pine trees
A silkworm is actually a caterpillar, not a worm. There cocoons are made from silk. That is how they make the silk, they actually boil the cocoons with the 'worm' still inside and then through unthreading the cocoons they start the process of making silk that you can use. Unfortunately the caterpillars die as they are 'cooked' alive.
It is distilled from the resin of trees. Mostly from pine trees.
Pine trees have quite a few things that fern and mosses do not. Pine trees have pine cones and a wooden trunk.
No, there is only pine trees in pine forests. I think?
Natural, Pine comes from pine trees and trees grow naturally!
no, pine trees are gymnosperms and only produce cones, never flowers