all spiders are venomous
No
The western-diamondback rattlesnake is one of the most venomous snakes in the world."Venomous" is an adjective. It applies to creatures like rattlesnakes and black widow spiders that inject a toxin, called a "venom," into their prey. It can also be applied by analogy to human beings."Black widow spiders are highly venomous.""There are venomous spiders and also a few non-venomous spiders.":The nuns who bled Robin Hood to death were venomous old women."
no
venomous spiders
no
yup...
Almost all spiders are venomous. "Earth spiders" are creatures in Japanese mythology. Maybe you mean "earth tiger" spiders, which are a family of spiders in China and SE Asia. They are indeed venomous.
Do you mean "spiders that make cobwebs"? Do you mean "poisonous" (like hemlock tea) or venomous (like cobra venom)? The word "cob" in "cobweb" just meant "spider." So a cobweb is just a spider web. Not all spiders are venomous. No spiders are known to be poisonous. Since black widows make webs, some "cob spiders" are highly venomous.
No cat spiders are not venomous. Infact i have a pet cat spider it is in a little tank in my room i hold it and nothing happens they are harmless to humans.
All spiders are poisonous; some venoms just have no or little discernible effect on humans. Color is not necessarily an indication of toxicity. Some spiders are red to blend in with their surroundings, some are red as a warning, and really are venomous, and some a red to mimic the truly venomous ones. In any case, color alone is not enough to determine how poisonous a spider is.
No, they are generally harmless to humans.