The toxicity and the concentration are directly proportional to the mortality of the fish.
It's a Symbiotic relationship
The relationship between the lungfishes and amphibians is that the lung fishes have lungs unlike amphibians who don't because they depend on water
agnathostomes= Jawless fishes gnathostomes= Jawed fishes
they die
croocidiles can stay on land on a period of time but fishes cant
M. Yaqub Javaid has written: 'The length-weight relationship and condition of seven freshwater fishes of Pakistan' -- subject(s): Fishes, Growth
in the group, all the fish are of the same species = use "fish"in the group, the fishes are of different species = use "fishes"Fish is used as plural and singular.However,Fishes is used to refer to multiple species of fish.
platypus
The group of fishes most closely related to ancestral amphibians are the lobe-finned fishes, which include the coelacanths and lungfishes. These fishes share certain characteristics with amphibians, such as limbs with digits and lungs or lung-like structures, indicating a close evolutionary relationship.
anadromous fishes - live in ocean reproduce in freshwater or catadromous fishes - live in freshwater but reproduce in saltwater amphidromus fishes - move between fresh and saltwater for non-reproductive reasons
jeol fishes are fishes who have dual respiratory organs. rakesh
pairing in fishes