2006-07-04 04:58:00 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Biology
Indeed the entire bacterial population in our gut is ESSENTIAL for our survival. Just try drinking a little javel water and try to digest... (don't try it, serriously).They can live outside our organisms however, so they are not as dependent upon us to survive and could not be classified as symbiotes.
However, every single cells in the body possesses mitochondrias. They are the energy factory that produce almost all the ATP necessary for the functionning of the cell.
What's amazing is that these are actually very ancient bacterias that have been incorporated inside ancient cells. They produced ATP, the host cell protected them from outside elements. Over the billions of years that follow, we still have those mitochondria and, most surprisingly, they still have their own DNA and replication machinery so you could say this is the perfect symbiotic element in human (and eukaryote) development
2006-07-04 08:52:30 · answer #1 · answered by TonySti 2 · 3⤊ 2⤋
There are many living organisms that are symbiotes of human beings. Our gut contains micro-organisms that aid our digestion, for example.
Human beings' relations with dogs are largely symbiotic. In fact, this can be said of humans' relations with all domestic flora and fauna.
2006-07-04 05:09:47 · answer #2 · answered by alex b 1 · 0⤊ 0⤋
I'm sure there are organisms that can be classes as symbiotes for human beings.
How about the microbes that live in our guts and help us digest food?
2006-07-04 05:02:43 · answer #3 · answered by enginerd 6 · 0⤊ 0⤋
Humans do have symbiotes.Bacteria play important roles in various physiological processes like digestion and helps our immune system (hence why pro0biotic stuff sells well).Mitochondria are believed to be organisms that were symbiotes for humans and eventually during the process of evolution became integrated into cells
2006-07-04 05:22:39 · answer #4 · answered by iw_newc84 2 · 0⤊ 0⤋
For the same reason there are no symbiotes for hedgehogs, earthworms, horseshoe crabs, daffodils, giraffes, jellyfish and sea-pork; no conditions have arisen in the past that presented the opportunity for humans to co-evolve with a symbiote. Though you might find some scientists that disagree with your contention, and would cite both canis familiaris and canis lupus familiaris as symbiotes to homo sapiens!
2006-07-04 05:08:55 · answer #5 · answered by Anonymous · 0⤊ 0⤋
we do have symbiotic relationships with many organisms. We depend on many different species to survive. If you mean why there isnt any other species close to the human species, I think we killed them all off during our evolution. Also, the climate changed and they did not evolve at the same rate as the current day humans. Thats as far as I understand it.
2006-07-04 05:12:44 · answer #6 · answered by honiebee 3 · 0⤊ 0⤋
We have symbiotic bacteria in our digestive system. They help us digest, we give them a warm wet place to reproduce. Everyones happy.
2006-07-04 05:42:24 · answer #7 · answered by psilohead 2 · 0⤊ 0⤋
There are hundreds of organisms living in symbiosis with you right now. Your digestive system is crawling with bacteria which help break down your food, have you never seen the ads for those probiotic yoghurts which "top up" your supply?
2006-07-04 05:05:21 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Uhm, because I think that is one of the diseases we're vaccinated for when we're little.
2006-07-04 05:07:40 · answer #9 · answered by sexxymexxy926 3 · 0⤊ 1⤋