Earth's Biology

5. group of individuals of similar organisms that can be breed and produce fertile offspring
8. scientific study of interactions between organisms and their environment
10. dense covering formed by the leafy tops of tall rainforest tree
11. microscopic organisms that live in aquatic environment
12. ecosystem in which water either covers the soil or is present at or near the surface at least part of the year
14. part of Earth's surface in which life exists, including land, water, and air or atmosphere
16. all the organisms that live in a place, together with their non-living environment

1. any living part of the environment with which an organism might interact
2. group of individuals of the same species that live in the same area
3. all water - salt water and fresh water, in the form of liquid, ice, or vapor above and below Earth's surface
4. all of the rock below Earth's surface
6. sunlight region near the surface of water
7. assemblage of different populations that live together in a defined area
9. thin layer of gases that surround Earth
13. group of ecosystems that share similar climates and typical organisms
15. kind of wetland formed where a river meets the ocean