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Introduction
to
Biology 
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Answer
Key:
| 1)
organism |
| 2)
biology |
| 3)
unicellular |
| 4)
multicellular |
| 5)
differentiation |
| 6)
homeostasis |
| 7)
reproduction |
| 8)
deoxyribonucleic acid |
| 9)
asexual |
| 10)
evolution |
| 11)
ecology |
| 12)
ecosystems |
| 13)
natural selection |
| 14)
photosynthesis |
| 15)
autotroph |
| 16)
heterotroph |
| 17)
development |
| 18)
gene |
| 19)
metabolism |
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