A large spider from the jungles of South America is accidentally transported in a crate with a dead body to America where it mates with a local spider. Soon after, the residents of a small California town disappear as the result of spider bites from the deadly spider offspring. It's up to a couple of doctors with the help of an insect exterminator to annihilate these eight legged freaks.
A crow is bitten by the spider and dies. A mouse is injected with spider venom and dies. Lots of dead animals (that look super fake) caught in spider webs: mouse, rat, bat, maybe a cat.
Of course a bunch of spiders die, but in the webs there are a bunch of dead animals, including some rats, a bat, one cat, etc. No living cats that we see die.
Yes, but not fully. There is a scene of teenage boys dropping their pants but we only see their heads and feet. There is a more intimate scene of a teenage girl in the shower, we see her torso up close but not anything explicit.
Blood drips from mouths after deaths because the characters have bitten through their tongues. The protagonist has multiple cuts on his arms and head during the climax.