Question

How spiders are useful

Answer 1

Hey mate here is your answer

Spiders eat pests.Spiders feed on common indoor pests, such as Roaches, Earwigs, Mosquitoes, Flies and Clothes Moths. If left alone, Spiders will consume most of the insects in your home, providing effective home pest control.

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Answer 2

Spiders are important to agriculture and horticulture as predators whose main prey are insects. Insects that eat crops and pester livestock. It has been estimated that spiders eat more than the weight of the human population in insects each year.

Spider silk has been used for making the cross-hairs in telescopes and optical measuring devises. The gene discovered that makes spider silk is capable of being inserted into other animal cells and may lead to the mass-production of spider silk through other animals, such as goats, in their milk.