Across
- 1. available power.
- 6. the living organisms of a region.
- 7. Something that excites an organism or part to functional activity.
- 10. any organism capable of self-nourishment by using inorganic materials as a source of nutrients and using photosynthesis or chemosynthesis as a source of energy, as most plants and certain bacteria and protists.
- 11. composed of several or many cells.
- 12. any behavior of a living organism that results from an external or internal stimulus.
- 13. reproduction involving the union of gametes.
- 14. reproduction, as budding, fission, or spore formation, not involving the union of gametes.
- 16. Any basic process of organic functioning or operating.
Down
- 2. DNA instructions found in every cell
- 3. .the science or branch of biology dealing with animals.
- 4. the study of the microscopic appearance of cells, especially for the diagnosis of abnormalities and malignancies.
- 5. having or consisting of a single cell.
- 8. an organism requiring organic compounds for its principal source of food.
- 9. the tendency of a system, especially the physiological system of higher animals, to maintain internal stability, owing to the coordinated response of its parts to any situation or stimulus that would tend to disturb its normal condition or function.
- 15. the basic structural unit of all organisms.