Which of these is a fluid equivalent to blood in most invertebrates?

We have many spiders in our garden, I have been bitten more than 30 times in one year, The bites are very itchy and hot, The only problem that I've had is feeling very tired for one day after a bite, .

* Seshati *, I quite agree with you...spiders are man's best friend...

What great information thanks 😊 I love spiders they are often misunderstood & are vital to the environment. Plus is there anything prettier than a spiders web with dew on it.

real cool info!! THANX!!