Across
- 5. all the organisms of the same group or species who live in a particular geographical area and are capable of interbreeding.
- 7. how close in abundance (numbers) each species in an environment is.
- 8. The branch of biology concerning interactions among organisms and their biophysical environment
- 9. The variety of plant and animal life in the world or in a particular habitat
- 10. An individual animal, plant, or single-celled life form
- 12. Biological community of interacting organisms and their physical environment
- 13. The variation in the amount of genetic information within and among individuals of a population, a species, an assemblage, or a community.
Down
- 1. The external surroundings including all of the biotic and abiotic factors that surround and affect the survival and development of an organism
- 2. is the number of different species that are represented in a given community
- 3. Any alteration in the structure or function of an organism that results from natural selection and by which the organism becomes better fitted to survive and multiply in its environment.
- 4. The number of different species represented in an ecological community, landscape or region.
- 6. Sequence of nucleotides in DNA or RNA that codes for a particular trait
- 11. The extinction of a large number of species within a relatively short period of geological time