Biosphere Crossword

2. factor: environmental conditions that limit the growth abundance or distribution of an organism or population in an ecosystem
4. are the species formed from chemical reactions
5. a substance that takes part in and undergoes change during a reaction.
7. one of the groups in which animals and plants of the same genus are divided according to their shared characteristics
8. the preying of one animal on others
9. animals that eat only plants
11. the regions of the surface, atmosphere and hydrosphere of the earth occupied by living organisms
14. interaction between 2 different organisms living in close relationship
15. animals that eat plants and animals
17. chemical process in which green plants make their food. Example plants use energy from the sun to turn water and carbon dioxide into food.
19. process all living things go through to create the energy they need to live. Example exchange of 2 gases the cell takes in oxygen and releases carbon dioxide
23. a community of animals and plants that interact with their environment
24. is a double membrane bound organelle found in most eukaryotic organisms.
27. the process by which the structure of a biological community evolves over time.
28. capacity: the number or quantity of people or organisms or crops that a region supports

1. species: hardy species which are the first to colonize
3. a relationship that benefits 2 organisms- example pollination- bee takes nectar from flowers
6. leaving one place of habitat to live in another place- example
10. tiny parts in a plant cell that contain chlorophyll and the place where photosynthesis occurs.
12. a change that a living thing goes through so that it fits better in its environment
13. a relationship between two organisms in which one lives with or on the other and obtains food without damage-
16. makes its own food
17. the total number of people who live in a place
18. organism that cannot make its own food
20. animals that eat only meat
21. the practice of living as a parasite in or on another organism
22. going from one place to the next
25. a group of people who live in the same area or have something in common
26. to search among garbage for food or something useful