Across
- 2. two or more atoms held together by covalent bonds
- 4. a fluid or gas's dissolved molecules moving from an area of higher concentration to one of lower concentration
- 6. substance made of atoms of different elements that are bonded together in a particular ratio
- 10. mixture that is consistent throughout
- 11. basic unit of life
- 12. changing organized group of related parts that interact to make a whole
- 13. inherited trait that is selected for overtime because it allows organisms to better survive in their environments
Down
- 1. group of organisms similar to one another that can breathe and produce for fertile offspring
- 3. scientific study of all forms of life
- 5. variety of life within an area
- 7. change in a species overtime, processed biological change by which descendants come to differ from their ancestors
- 8. all organisms and the part of earth were they exist
- 9. substance in which solutes to dissolve and that is present in greatest concertation in a solution
- 14. small unit of life
- 15. any individual living thing