What percentage of fish species live in freshwater ecosystems? A. 30% B. 40% C. 45% D. 35%
Biology · Middle School · Sun Jan 24 2021
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Correct option is c .
They cover less than 1 per cent of the planet's total surface, yet they're home to almost a quarter of all vertebrate species – including over half of all the world's fish species. It's an extraordinary fact: of 35,768 known species of fish, 18,075 – or 51 per cent – live in freshwater .