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Across 2. all of the kingdoms in order to classify spieces 5. the study of classifying 7. transfer rna 8. 2nd to least broad group of animals 10. most popular decomposer 11. a made up organism 13. deoxyribonucleic acid 14. the things making up an organism 15. a group of animals

Down 1. a key to identify organisms 3. a human at the beginning of our species 4. a type of cell found in plants 6. messenger rna 9. 2nd to most broad group of animals 12. ribonucleic acid