Biological Sciences

1. the basic unit of structure and function in an organism
4. an organism that lives on or in another organism
6. generation the first generation of offspring
7. a process of change, such as from a human baby, to an adolescent, to an adult
11. resource a product of the environment that is used by humans or other organisms
12. a characteristic of an organism that promotes its survival in a certain environment
14. the process of turning productive land into deserts
16. the change in species over time
17. the organism that is affected by a parasite

1. capacity the number of individuals an ecosystem can support
2. anything that causes a response
3. the clearing away of forests
4. a harmful material that is released into the environment
5. the wise use of natural resources
8. generation the parental generation
9. the differences that exist naturally among the members of a species
10. the permanent dying out of a species or larger classification of organisms
13. the practice of harvesting fish at a rate faster than the population can renew its numbers
15. an area of land that remains wet for all or part of the year