Across
- 4. thick gel-like fluid inside the cell between the nucleus and the cell membrane
- 6. a community in which populations of plant or animals remain stable and exist in balance
- 8. a series of predictable changes that occur in a community over time
- 10. the offspring of many generations that have the same traits
- 11. the basic unit of life
- 12. a nonliving part in an ecosystem
- 13. two or more atoms joined together chemically
- 14. controls the activities of the cell
- 15. a distinct group of animals or plants that have common characteristics and can breed with each other
- 17. a simple sugar which is an important energy source in living organisms
- 18. an organism that obtains energy from the sun through photosynthesis
- 19. any living thing
- 20. long chain of molecules containing genetic info that makes up chromosomes
- 21. a segment of DNA that has the codes for specific DNA
Down
- 1. an organism that breaks down waste and dead organisms
- 2. the type of plant tissue that transports food from the leaves to the other part of the plant
- 3. an organisms characteristics
- 5. energy given off during transformation
- 6. the average weather conditions in a certain area
- 7. any bitoic or aboitic factors in an environment that restrict population growth
- 9. rigid later surrounding a plant cell that provides support, strength, and shape
- 16. a group of similar cells that do the same work
- 18. a chart that is used to calculate the probability of an offspring combination of alleles