Biology terms

2. something an organism does in response to external stimuli
4. term for a species that is essential in the maintenance of the environment
9. stage where the duplicated genetic material splits
10. stage where the cytoplasm splits into two
12. programmed cell death
13. cell division that results in four nuclei
14. relating to or resulting from a living organism
16. stage of growth, replication of chromosomes, prepares for cell division
17. physical, rather than biological, not derived from a living organism
18. term for competition between members of different species within the same population
19. all species/members benefit from the relationship
20. stage where the nucleus dissolves, cells chromosomes condense and move to the middle

1. adaptations that allow an organism to thrive in its external environment
3. term for competition between members of the same species
5. one is harmed, the other benefits from the relationship
6. cell division that results in two nuclei
7. adaptation that involves internal organs, tissues and cells
8. large unicellular organisms that can cause disease
11. one member benefits, and the other is unharmed and does not benefit
15. stage where the spindle fibers disappear, the nucleus forms around the daughter chromosomes