Across
- 3. lake or pond bottom, which receives little to no sunlight
- 4. part of the ocean that extends from the edge of the neritic zone to the base of the continental shelf
- 7. virus that infects bacteria
- 8. all organisms and the part of Earth where they exist
- 13. asexual reproduction in which a single-celled organism divides into two equal parts
- 14. collection of living things
- 15. regional or global community of organisms characterized by the climate conditions and plant communities that thrive there
- 17. use and application of living things and biological processes
- 18. study of plants
Down
- 1. scientific study of all forms of life
- 2. process by which humans use living things to break down pollutants
- 5. use of computer databases to organize and analyze biological data
- 6. amount of energy needed to break a bond between two particular atoms; or the amount of energy released when a bond forms between two particular atoms
- 8. living things, such as plants, animals, fungi, and bacteria
- 9. animal that walks on two legs
- 10. variety of life within an area
- 11. one of the three domains of life, containing single-celled prokaryotes in the kingdom Bacteria
- 12. stage of development during which the zygote consists of a ball of cells
- 16. total dry mass of all organisms in a given area
- 18. having no dangerous effect on health, especially referring to an abnormal growth of cells that are not cancerous