| A | B |
| Food chain | how energy passes from one living thing to another in a single path |
| producers | green plants that make their own food |
| consumers | eat both plants and animals |
| decomposers | eat dead plants and animals and put nutrients back in the soil |
| food web | food chains overlap |
| niche | a special place in a habitat where an animal can meet all of its needs to survive. This includes what the organism eats and what eats it |
| What organisms need to find in their habitat to survive | shelter, protection, food, water |
| Examples of habitats | rainforest, iceberg, desert, ocean |
| ecosystem | plants and animals interact with each other and their surroundings. They may be small or large |