| A | B |
| community | all the diffferent living things in an area |
| ecosystem | the community along with its environment |
| niche | how an organism lives out its life |
| habitat | where an organism lives out its life |
| mutualism | close association of 2 or more different species where both organisms benefit |
| transpiration | how water is lost from the biotic parts of the biosphere to the abiotic parts |
| diversity | the different species in an area |
| experiment | a test of a hypothesis |
| heredity | the passing of characteristics from parents to offspring |
| homozygous | the alleles present for a trait are the same |
| haploid | a cell that contains one member of each chromosome pair |
| meosis | the type of cell division that produces gametes |