ecology pt 2

4. fern spores that form in a structure
5. inherited characteristic that results from response to an environmental factor
8. life span of two years
9. structures that either store food or help absorb food
10. plants that lack specialized transport tissue
13. compact cluster of spore breathing structures.
14. liverworts are classified as
16. reproductive haploid cell with a hard outer coat that can develop into a new organism
17. plant that lives for several years
18. having a juicy pulpy texture
20. relationship in which two organisms live together
21. a structure that contains the male or female reproductive structures of a cycad
22. plant structure that contains an embryo

1. Most immediately noticeable
2. roots and a thick undergound stem
3. plants with vascular tissue
6. any abiotic or biotic factors that restricts the existence, numbers, reproduction, or distribution of organisms
7. openings in the outer cell layer of leaves and some stems
11. located on the undersides of fronds
12. specialized transport tissue
15. plant with a long life span
19. a plant that lives anchored to another object or plant