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AlexFokin [52]
3 years ago
7

Birth defects can be caused by:

Biology
2 answers:
san4es73 [151]3 years ago
7 0
All of the above because many thing can cause birth defects
sp2606 [1]3 years ago
7 0
- - D all of the above

This is because genetic factors, unknown factors, and <span>environmental factors are all things that can be caused by birth defects.

</span>
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