No, zanima me, ce so ribe zejne, se pravi ali cutijo zejo in zavedno pijejo vodo (ce jo sploh "pijejo")? Sem vprasal 3 profesorce biologije pa niso znale odgovorit.
Ali so ribe kdaj žejne?
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Grothorious
- Prispevkov: 18
- Pridružen: 26.4.2008 0:15
Ali so ribe kdaj žejne?
Lep pozdrav, sem cist nov tu, ful zanimiv forum je pa casopis nasploh, cist navdusen sem
No, zanima me, ce so ribe zejne, se pravi ali cutijo zejo in zavedno pijejo vodo (ce jo sploh "pijejo")? Sem vprasal 3 profesorce biologije pa niso znale odgovorit.
No, zanima me, ce so ribe zejne, se pravi ali cutijo zejo in zavedno pijejo vodo (ce jo sploh "pijejo")? Sem vprasal 3 profesorce biologije pa niso znale odgovorit.
Re: Ali so ribe kdaj žejne?
Po moje, če so predolgo na soncu- postanejo žejne! 
Bolj zares; za prebavo gotovo potrbujejo H2O in določene snovi raztopljene v njej, žejne so najbrž tiste, ki imajo zaradi kakšne ovire (poškodba, tujek, tumor, ...) v prebavnem traktu. Torej, dihajo še vedno lahko skozi škrge, jesti/piti pa ne.
Sicer pa morajo itak trikrat plavat ...
Bolj zares; za prebavo gotovo potrbujejo H2O in določene snovi raztopljene v njej, žejne so najbrž tiste, ki imajo zaradi kakšne ovire (poškodba, tujek, tumor, ...) v prebavnem traktu. Torej, dihajo še vedno lahko skozi škrge, jesti/piti pa ne.
Sicer pa morajo itak trikrat plavat ...
Re: Ali so ribe kdaj žejne?
Stric Google vse ve:). Jaz bi ti odgovoril, da jo sigurno pijejo, saj procesi v živih bitjih ne delujejo brez vode, še mi smo v 60% sestavljeni iz vode!
Torej tole je odgovor:
The answer to this question differs, depending on whether you're talking about saltwater fish or freshwater fish.
Freshwater fish do not actively drink water, but absorb the water through their skin and gills. On the other hand, saltwater fish do actively drink sea water. Their gills process the water and take out the salt.
The salmon is an interesting example of a fish that lives in both fresh and salt water, and consequently, they have the characteristics of both types of fish. Salmon are born in fresh water, and migrate to the ocean. While living in the ocean, they drink saltwater by opening their mouth; their gills then rid their bodies of the salt and minerals. When the salmon enters freshwater streams to spawn, they stop drinking the water and instead absorb it through osmosis (osmosis means that the water passes through the cells of the fish's skin into its body).
Torej tole je odgovor:
The answer to this question differs, depending on whether you're talking about saltwater fish or freshwater fish.
Freshwater fish do not actively drink water, but absorb the water through their skin and gills. On the other hand, saltwater fish do actively drink sea water. Their gills process the water and take out the salt.
The salmon is an interesting example of a fish that lives in both fresh and salt water, and consequently, they have the characteristics of both types of fish. Salmon are born in fresh water, and migrate to the ocean. While living in the ocean, they drink saltwater by opening their mouth; their gills then rid their bodies of the salt and minerals. When the salmon enters freshwater streams to spawn, they stop drinking the water and instead absorb it through osmosis (osmosis means that the water passes through the cells of the fish's skin into its body).
Re: Ali so ribe kdaj žejne?
Ja verjetno, da jo pijejo, saj vsak organizem potrebuje vodo, da lahko živi in dobi neko enrgijo! Vsaj moja logika je takšna!