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Scrat [10]
3 years ago
14

Changes in DNA that sometimes do and sometimes don't have a harmful effect are called what?

Biology
2 answers:
riadik2000 [5.3K]3 years ago
6 0

They are called mutations..... :)

aniked [119]3 years ago
4 0

Answer:

A harmful one would be cutting down trees to make a new mall, This is the exact opposite of the one above, less food for plant or leave eating animals and less oxeygen

Explanation:

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