Ecosystems

Ecosystems

What is an ecosystem
1. a ecosystem is a biological community of interacting organisms and their physical environment.
plants
1. photosynthesis
  1. Plants produce their own nutrients
  2. turn suns enegy water and carbon dioxide into glucose
  3. plants are producers
  4. plants are at the bottom of food chains
food webs
1. a system of interlocking and interdependent food chains.
food chains
1. A food chain shows how each living thing gets food, and how nutrients and energy are passed from creature to creature.
humans and ecosystems
1. posative impacts
  1. jobs are created
  2. money is made
  3. quality of life improves
2. negative impacts
  1. habitats are destroyed
  2. native tribes have been forced to move
  3. global warming is speeded up
  4. soil quality reduced
  5. increased flooding
main types of ecosystem
1. Tropical rainforests
  1. The tropical rainforest is a hot, moist biome found near Earth's equator.
2. hot deasert
  1. A desert is a barren area of land where little precipitation occurs and consequently living conditions are hostile for plant and animal life.
3. Tundra
  1. tundra is a type of biome where the tree growth is hindered by low temperatures and short growing seasons.
4. plains
  1. a plain is a flat, sweeping landmass that generally does not change much in elevation.

Resource summary

	Created by tom 1234 almost 7 years ago