Ecology

5. The natural environment where an organism lives
6. The branch of science that studies the relationships of organisms with their physical surroundings and with each other
7. The apparatus that is used in a habitat study to study very small organisms. It consists of a jar that has two tubes.
9. The interaction between organisms in an environment for resources that are in short or limited supply
10. Organisms that cannot produce their own food and must get their nutrition from eating other organisms
11. The green plants that can make their own food by photosynthesis
12. The living, or once-living, things that are in a habitat

1. The way that organisms in a habitat rely on each other
2. The way that organisms have evolved to suit their environment
3. Organisms that feed on and break down dead plants and animals
4. The non-living things that affect organisms in their habitat
8. All the plants and animals that live in a particular area and share the resources in that area