One ecosystem is a forest ecosystems which have lots of plants and animals along with lots of rainfall. The desert ecosystem is just like the opposite of the forest ecosystem because it is hot, dry, and doesn't contain very many animals. The next ecosystem is the grassland ecosystem. These ecosystems can be found inside of forest ecosystems but have a little less plants and animals. After that, we have the Mountain ecosystem. This ecosystem provides a diverse and scattered array of habitats where a large number of plants and animals can be found. The last ecosystem is the marine ecosystem. The marine ecosystem make up 71% of the earth's surface and is all bodies of water. A decomposer is an organism that decomposes dead matter by eating it. A consumer eats other living organisms. A producer is an organism that produces its own food using the sun. An ecosystem is a part of earth with living organisms and biological life. A food chain is a hierarchy of animals in which the order is what animal eats which. Biotic is the results from living organisms or relating to living organisms. Abiotic is physical, not living, results or relations. Adaptation are changes a living organism makes in order to survive. In a wetland ecosystem, an example of biotic features could be animals or plants like deer or trees. Abiotic features could be rocks or rivers. An example of a food chain could be a black berry bush to a grasshopper to a humming bird to an eagle to a bear. Energy enters the ecosystem through the sun to a producer. Arrows in food chain representations represent energy. If one element in an ecosystem is exterminated, it could cause the whole ecosystem to die due to this extermination ending all energy in the food chain. Wetlands positively affect the water quality of the ecosystem because it filters pollutents out of water. Because wetlands are like giant sponges, wetlands provide flood protection because they slowly release groundwater and take in a lot of water. Wetland plants provide protection from erosion to shorelines by holding the ground in place with roots and stopping waves. Wetlands also provide wildlife, recreation and food.