Across
- 3. groups of similar cells carrying out similar or related functions
- 7. large biologically important molecules that are formed by joining smaller units together
- 9. smallest fundamental unit of structure and function in living organisms
- 11. tree diagram used to reflect evolutionary relationships among organisms
- 13. single-celled organisms that do not have membrane-bound nuclei or organelles
- 15. sum of populations inhabiting a particular area
- 16. smallest unit of matter
- 17. describes the relationships of one organism to others
- 18. a living thing that maintains an internal order that is separated from the environment
- 20. organisms that have membrane-bound organelles and a membrane-bound nucleus
- 21. a series of changes in the state if a cell, tissue, organ or organism that results in organisms with a defined set of characteristics
- 23. an increase in weight or size
Down
- 1. the study of life
- 2. aggregates of macromolecules surrounded by membranes
- 4. nomenclature two word scientific name consisting of the genus and species
- 5. all the living things in a particular area together with the abiotic, non-living parts of that environment
- 6. diversity
- 8. ability of an organism to maintain constant internal conditions
- 10. collection of all ecosystems
- 11. all the individuals of a species living within a specific area
- 12. system higher level of organization that consists of functionally related organs
- 14. science of classifying organisms to construct internationally shared classification systems with each organism placed into more and more inclusive groupings
- 19. two or more atoms joined together by one or more chemical bonds
- 21. within a particular area, community or ecosystem, and is measured by counting the number of taxa within the ecosystem (usually species)
- 22. collections of tissues grouped together performing a common function