| A | B |
|---|
| Habitat | Where an organism lives |
| Niche | The role an organism plays in its environment. |
| Population | Group of the same TYPE of organism in the same PLACE at the same TIME. |
| Biosphere | The thin film of life on planet Earth. |
| Symbiosis | Interaction among species (together-life-condition). |
| Succession | The continual |
| Commensalism | Silverfish live and hunt with army ants. They share prey. Silverfish neither help nor harm the army ants. |
| Parasitism | Mistletoe extracts water and nutrients from the spruce tree |
| Mutualism | Oxpeckers feed on the ticks found on a rhinoceros. Both species benefit. |
| Coal | The most abundant fossil fuel. |
| Biogeochemical cycles | The cycling of nutrients from the nonliving world to the living world and back. |
| Lichen | Primary succession starts with this type of organism. |
| Grass | Secondary succession starts with this type of organism. |
| Desert | Hot |
| Tropical Rainforest | Hot |
| Savanna | Warm |
| Grassland Comfortable | dense tall grasses |
| Taiga | Cool |
| Tundra | Cold |
| Temperate Deciduous Forest | Broad leaved trees |
| Consumer | Eats something it didnt make itself |
| Producer | Makes its own food |
| Herbivore | Eats producers only |
| Carnivore | Eats meat only |
| Omnivore | Eats plants and animals |
