front 1 Keystone species | back 1 an organism that plays a unique an crucial role in the way an ecosystem functions |
front 2 Ecosystem | back 2 the living organisms and the environment with which they interact |
front 3 habitat | back 3 the natural environment where an organism lives |
front 4 niche | back 4 the role of a species within an ecosystem |
front 5 species | back 5 a group of similar organisms that can interbreed naturally to produce fertile offspring |
front 6 population | back 6 all the individuals of the same species that live at the same place and time |
front 7 biotic factors | back 7 the living parts of an ecosystem, which includes the organisms and their effects on each other |
front 8 frame quadrat | back 8 a plastic or metal square that sets a standard unit of area for study of the distribution of marine organisms |
front 9 transect | back 9 a rope or tape marked at regular intervals that sets standard distances for study of the distribution of marine organisms |
front 10 line transect | back 10 a sampling method involving counting of species that touch the intersect |
front 11 belt transect | back 11 a sampling method involving counting of species in frame quadrats placed adjacent to the transect |