What are the cause of Anaphylaxis?

No: only people who have severe food allergies (cannot eat certain foods) have the risk of getting into anaphylaxic shock.

Yes! I have known people that have gone into anaphylaxtic shock after being bitten by fire ants.

Insecurity? If there's one person who about insecurity, its me. I spent my early childhood incredibly insecure. And up until now, I still know lots of other people who are stuck in that STAGE. There...

Proximate: What triggered the immediate response of an animal? Ultimate: how did it benefit the species?

The formation of numerous, closely spaced rills due to the uneven removal of surface soil by streamlets of running water. Also known as rilling; rill wash; rillwork.