Ecology and Earth's spheres

1. A simple way to show how energy moves from one organism to another in a straight line, one energy pathway.
3. Was one of the first scientists to test the Green World Hypothesis by removing the Purple Sea Star from tide pools.
7. A chain reaction in an ecosystem that happens when a top predator is removed, affecting many other species.
11. Organisms that make their own food using sunlight or chemical energy, like plants (a producer).
12. Each step in a food chain or food web that shows how energy moves from one organism to another.
13. The natural home or environment of an organism, including all the things it needs to survive.
16. The sphere of the Earth that includes all of Earth’s surface water, groundwater, and atmospheric water (water vapor)
18. A single living thing, such as a plant, animal, or bacterium.
19. A species that has a big impact on its ecosystem, and its removal can cause big changes.

1. A complex network of how different food chains are connected in an ecosystem.
2. The study of how living things interact with each other and their environment.
4. All the members of a single species living in a specific area.
5. The sphere of the Earth that includes the portion of the Earth where life is found
6. Organisms that cannot make their own food and must eat other living things.(a consumer)
8. The non-living parts of an ecosystem, like water and sunlight, that affect living things.
9. The sphere of the Earth made up of the gasses surrounding the Earth.
10. A community of living things and their non-living environment interacting together.
14. The living parts of an ecosystem that affect other living things.
15. The sphere of the Earth that includes the rocks, minerals, soil and all layers of the Earth.
17. All the different populations of species living in a particular area.