1. Community Ecology and Resources

2. An ecosystem includes all the biotic (living) and abiotic (abiotic)factors in an environment.

3. Resources
Renewable resources can be replaced/regrown/replenished after use
Replenished by biochemical cycles (non-living)
EX: 

4. Resources
Non-renewable resources either can’t be replenished/replaced when used or it takes millions of years
EX:

5. Biodiversity is the sum total of different organisms on Earth or in a specific area. Biodiversity is critical to our survival because it provides us with food, medicines, wood for homes, chemicals, products, etc.
Biodiversity

6. https://www.youtube.com/watch?v=0-PE3ve3w2w Biodiversity video

7. Which area has more biodiversity?
Area 1: zebras, elephants, grass, trees, lions, hyenas, giraffes, gazelles, cheetahs, hippos, rhinos.
Area 2: trees, grass, lions, elephants, deer, antelope, cheetahs, crocodiles, giraffes

8. Threats to Biodiversity
A.) Extinction is when the last member of a species dies.
B.)A species close to extinction is endangered

9. Threats to Biodiversity (continued)
C.) Pollution in the environment. Biological magnification causes concentrations of harmful substances to increase the higher up the food chain you go.
D.) Introducing non-native species. Humans regularly move plants/animals to new places where they grow, reproduce beyond control, using resources in the area, causing native plants/animals to die off.

10. Bioaccumulation https://www.youtube.com/watch?v=fdTV3F9k1IA

11. Invasive species video