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Biology 13 Online
OpenStudy (anonymous):

Many of the ancient phototrophic and heterotrophic bacteria lived in colonial associations known as

OpenStudy (anonymous):

a.stalagtites b.stalagmites c.stromatolites d.none of the above

OpenStudy (kainui):

Stalagtites and stalagmites aren't biological features at all, they're rock formations found in caves. What's the likelihood that a phototrophic (something that gets its energy from the sun) is going to be living in a deep, dark cave?

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