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Promoted

Lv 4

First L asked in Science & Mathematics Biology · 1 decade ago

what is an example of biological redundancy/ backup system in animals?

something other than a fish with gills &lungs

or a frog with lungs & can "breathe" through its skin

1 Answer

Relevance

Anonymous
1 decade ago
Favorite Answer
You have a right kidney and a left kidney.

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