Most fresh water fish are hypertonic, meaning their body cells contain more salt than the surrounding water. Since osmosis should push water into their cells, why don't they explode?
a) They urinate a lot, so the water does not build up.
b) They don't drink any water because they get so much from osmosis.
c) Their cells have adapted to absorb salt.
d) They have adapted to live with high osmotic pressure.
e) All of the above
E
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