1. Tuesday, May 9
Why is it so important for humans to have plants on Earth with us?

2. Photosynthesis: when plants use solar energy to make and store chemical energy as plant materials.

4. RESPIRATION: Animals using oxygen and sugar (chemical energy) to make mechanical energy

5. Put the following organisms in order for the food chain with arrows to show the energy flow:
Wolf, sun, flower, grasshopper, bird, bear, raccoon.

6. Energy Pyramid Producers Consumers Decomposer Herbivore Carnivore
Omnivore

7. NegativeHuman Influences on Ecosystems
Habitat Destruction
Human development
Deforestation
Land Loss/Desertification
Non-native Species/Invasive Species
Competition for Resources
Over Harvesting
fishing/hunting
5. Pollution/Global Warming
Air and Water

8. Positive Human Impacts on the Ecosystem
Making wildlife animal refuges to increase the population of endangered species.
Planting trees to reduce the impact of deforestation.
Cleaning up the pollution of rivers and oceans.
Reduce, Reuse, Recycle

9. Niche: Unique role, or job, of a species within an ecosystem
Niche: Unique role, or job, of a species within an ecosystem. How it uses its habitat to survive. Habitat: Location

10. Competition: 2 or more organisms using the same resource in a habitat
Competition: 2 or more organisms using the same resource in a habitat. Their niches overlap. Food, water, air, space needed to live long enough to reproduce and pass on genetics to the offspring.

11. Symbiosis: 2 organisms living in close association and at least one benefits from the relationship.

12. 3 Types of Symbiotic Relationships
Mutualism: both organisms benefit and help each other survive (win, win)
Examples: Clown fish and sea anemone, bacteria in human intestines
2. Commensalism: one organism benefits and the other is not affected at all. (win, draw)
Examples: Remora and Shark, bird nest in a tree
3. Parasitism: One organism benefits and one organism is harmed. (win,lose)
Examples: ticks, fleas, tape worms, heart worms, leeches, mistletoe