trace elements, e.g. mercury, lead, PCB
2007-03-21 14:24:49 · 4 answers · asked by smithese 1 in Science & Mathematics ➔ Zoology
yes sorry i meant scaleless fish. um why is that they are more prone? is it because they dont have that extra epidermis to filter out the bad chemicals?
2007-03-22 13:43:43 · update #1
Ok all fish have gills. If you mean scale-less fish then the answer is yes. Fish such as shark, marlin, and swordfish are prone to have higher amounts of trace elements. Swordfish are especially likely to have higher amounts of mercury.
2007-03-21 17:14:33 · answer #1 · answered by killertomcat02 2 · 0⤊ 0⤋
Yes, the scales are used as an extra protective barrier.
2007-03-24 14:03:05 · answer #2 · answered by Huevo 6 · 0⤊ 0⤋
i think you mean scaled and scale-less?!? i thought gills were one of the things that make fish, fish. like dolphins don't have gills cause they are mammals, not fish. kwim?
2007-03-21 22:11:37 · answer #3 · answered by Bio-student Again(aka nursegirl) 4 · 0⤊ 0⤋
Gill - less fish ?you lost me there. how do they breathe ?
[ lifetime fisherman ]
2007-03-21 21:54:26 · answer #4 · answered by Shark 7 · 0⤊ 0⤋