Across
- 3. large unicellular organisms that can cause disease
- 7. all species/members benefit from the relationship
- 8. one is harmed, the other benefits from the relationship
- 10. adaptation that involves internal organs, tissues and cells
- 13. programmed cell death
- 15. term for a species that is essential in the maintenance of the environment
- 17. term for competition between members of the same species
- 19. cell division that results in four nuclei
- 20. one member benefits, and the other is unharmed and does not benefit
Down
- 1. term for competition between members of different species within the same population
- 2. adaptations that allow an organism to thrive in its external environment
- 4. stage where the spindle fibers disappear, the nucleus forms around the daughter chromosomes
- 5. stage where the nucleus dissolves, cells chromosomes condense and move to the middle
- 6. stage where the duplicated genetic material splits
- 9. cell division that results in two nuclei
- 11. stage where the cytoplasm splits into two
- 12. relating to or resulting from a living organism
- 14. something an organism does in response to external stimuli
- 16. stage of growth, replication of chromosomes, prepares for cell division
- 18. physical, rather than biological, not derived from a living organism