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Across 4. Basic unit of life. 5. Made of multiple organs and/or tissues that have functions for multicellular organisms. (2 Words) 8. Basic unit of matter. It is made up of protons, neutrons, and electrons. 9. A group of organisms of the same species living close to each other. Basic unit of evolution. 10. Global ecosystems that include the crust and above. 11. A similar group of organisms that can interbreed. 12. Particles made of 2 or more atoms that are strongly bonded.

Down 1. Large molecule, usually organic 2. Collection of cells that are similar in shape in size and have the same function. 3. Made of multiple tissues and have specific functions of life. 4. A group of different species that coexist together. 5. An individual living thing that can be unicellular or multicellular 6. Small functional parts of a cell 7. An environment with biotic and abiotic things that exist and interact.