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YDS PARAGRAF DOLDURMA / TEST 5 19. Soru

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19.

Anyone who has ever walked into a spider's
web knows that the silk is deceptively
strong, despite Ms fragile appearance.
Dragline silk, which spiders use to crawl
down from ceiling to floor, is the strongest
of all. It is actually stronger than steel,
holding over 280,000,000kg per square
meter without breaking. ----. Unfortunately,
they have not been successful since spiders
tend to eat each other.

A spider's silk must serve the purpose of
transporting her to any part of the web

Spiders feed on a wide variety of insects
and are considered beneficial in the garden

That is why scientists have tried to farm
spiders for their silk

Although most spiders are venomous, they
are harmless to humans with a few
exceptions

Spiders tend to change the sites of their
webs if they can't catch enough prey