Are there poisonous spiders in canada?

Question

and how many are there?

Answer 1

All spiders are poisonous. The question is which species are toxic to humans.

The Brown Recluse (violin spider) and the Black Widow are poisonous to humans, but even with that they are not always deadly.  

Answer 2

yes there are  venomous spiders in canada.

there three species of venomous spider in canada.

Answer 3

I don't think any spider is poisonous since to be poisonous, it has to be toxic to eat it.  However, there are venomous spiders.

Answer 4

yes, lots