| A | B |
|---|
| One of the two major abiotic factors affecting a biome | Temperature |
| Water availability | Major factor affecting plants |
| Arid land with few, drought-resistant plants | Desert |
| Largest biome that supports small plants and grasses | Grassland |
| Soil has permafrost and few plants | Tundra |
| Warm, wet land with high species numbers | Tropical Forest |
| Hardwood trees lose their leaves during winter | Temperate Forest |
| Coniferous trees, peat swamps, and harsh winters | Taiga |
| Plankton | In the photic zone, the greatest numbers of organisms are |
| Estuary | Where salt water mixes with fresh water |
| Photic Zone | Area in water where light is found |
| Biome that would support the least biomass | Desert |
| Biome that would recover most slowly from man's damage | Desert |
| Abiotic factors | Non-living things that affect life |
| Biotic factors | Living things that affect other living things |
| Most complex bio-chemical cycle | Nitrogen cycle |
| The cycle where urine forms a vital part | Nitrogen Cycle |
| Carbon dioxide is involved in the | Carbon cycle |
| Fertilizer | Source of nitrogen and phosphorus |
