Across

1. 2verb What a cell does to become two cells. (6)
2. 5noun Any individual living thing. (8)
3. 6noun A change in the DNA sequence. (8)
4. 7noun The smallest unit of a living thing. (4)
5. 8adjective Too small to see without a special instrument. (11)
6. 10noun The natural home of an animal or a plant. (7)
7. 12noun A piece of DNA that carries a trait, like eye color. (4)
8. 13noun A molecule made of amino acids. (7)
9. 14noun The part of the cell that contains the DNA. (7)
10. 15verb To change slowly over many generations. (6)

Down

1. 1noun Single-celled microbes without a nucleus. (8)
2. 3verb To receive traits from your parents. (7)
3. 4noun A protein that speeds up a reaction in the body. (6)
4. 8noun The thin layer that surrounds a cell. (8)
5. 9noun A group of organisms that can reproduce together. (7)
6. 11noun A group of similar cells that work together. (6)