2007-06-28 03:55:11 · 11 answers · asked by Anonymous in Entertainment & Music ➔ Polls & Surveys
Spiders have an open circulatory system; i.e., they do not have true blood, or veins to convey it. Rather, their bodies are filled with haemolymph, which is pumped through arteries by a heart into spaces called sinuses surrounding their internal organs.
Spiders have developed several different respiratory anatomies, based either on book lungs, a tracheal system, or both. Mygalomorph and Mesothelae spiders have two pairs of book lungs filled with haemolymph, where openings on the ventral surface of the abdomen allow air to enter and diffuse oxygen. This is also the case for some basal araneomorph spiders like the family Hypochilidae, but the remaining members of this group have just the anterior pair of book lungs intact while the posterior pair of breathing organs are partly or fully modified into tracheae, through which oxygen is diffused into the haemolymph or directly to the tissue and organs. This system has most likely evolved in small ancestors to help resist desiccation. The trachea were originally connected to the surroundings through a pair of spiracles, but in the majority of spiders this pair of spiracles has fused into a single one in the middle, and migrated posterior close to the spinnerets.
taken from http://en.wikipedia.org/wiki/Spider
2007-06-28 04:01:14 · answer #1 · answered by twitching_green_grasshopper 3 · 1⤊ 1⤋
They must have little lungs so they can breathe. I don't think they can breathe under water though. Water spiders have adapted a way to live under water by staying near or carrying an air bubble on their backs. I saw this on a nature show on tv.
2007-06-28 04:01:54 · answer #2 · answered by barbwire 7 · 0⤊ 1⤋
Some spiders have the ability to trap a bubble of air around the hairs on their abdomen and using this they can "Breathe" under water. These are known generically as "Fishing Spider's" as their food source is fish but they don't have the same ability as fish ie Gills so to answer your question yes and no.
2007-06-28 04:07:06 · answer #3 · answered by Jim Jnr M 6 · 0⤊ 0⤋
I think that as spiders have little hairy legs (just like me!) the air gets trapped on the hairs and creates an air pocket from which it can breath. So technically yes they can....for a bit!
2007-06-28 04:01:31 · answer #4 · answered by Liggy Lee 4 · 0⤊ 1⤋
yes they need lungs to breathe dyes they can breath under water
2007-06-28 06:31:19 · answer #5 · answered by magiclady2007 6 · 0⤊ 1⤋
Yes-the little monsters must have-wash it down the plughole and it comes back up -yikes!! xx
2007-06-28 04:04:29 · answer #6 · answered by SUZANNE R 7 · 1⤊ 0⤋
No. I flush my squeeshed one down the loo.
2007-07-02 02:53:56 · answer #7 · answered by bluebinjulie 5 · 0⤊ 0⤋
no, i drown spiders in my bath tub all the time
2007-06-28 04:00:17 · answer #8 · answered by tenseblackbook 3 · 1⤊ 1⤋
yes
2007-06-28 03:58:35 · answer #9 · answered by dream theatre 7 · 0⤊ 1⤋
no i have a snorkle
2007-06-29 23:19:24 · answer #10 · answered by Anonymous · 1⤊ 0⤋