Spiders are essential to our lives and the lives of all other animals on our planet. Besides being fascinating cool creatures, "Spiders are primary controllers of insects," says Norman Platnick, who studies arachnids at New York's American Museum of Natural History. "Without spiders, all of our crops would be consumed by those pests."
In other words, without spiders catching all those insects we all would face famine.
Yes spiders do eat dragonflies. They catch them in their net or even pounce on them. They are a type of fly, hence spiders eat them.
Spiders don't have a pupa.
Biology is the science of life so, yes, spiders, being living things, are included in the field of biology. Everything that is alive is included in Biology.
Fauna includes animals, so yes. Flora is plant life.
Spiders do not have a vertebre so the are invertebres.
no
Because spiders are very posioness
so that you can have a fun youth and you can get brainwashed.
Life spiders
to live in their showers
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Different spiders have different average life span.The «Goliath birdeater» (Theraphosa blondi) has a life span of 15 to 25 years.Smaller species have a much short life span.