1. Ecology Extras

3. Growth of photosynthetic organisms because used CO 2 in photosynthesis to make food

5. Nitrogen is required to make amino acids (building blocks of proteins)

7. 6. Thousands of acres of tropical rainforests are cut down each year, primarily for farming and wood products. Identify two negative environmental consequences of rainforest destruction. Explain the negative impact of each consequence. (4 points) Scoring Guidelines Write the answer on separate paper. index

8. Bioaccumulation and Biomagnification Bioaccumulation - how pollutants enter a food chain Biomagnification - pollutants tend to concentrate as they move from one trophic level to the next.

9. You’ve found your niche! Ecological niche- the role and position a species has in its environment –Habitat- where an organism lives No two species can occupy the same ecological niche at the same time if resources are limiting…

10. Relationships Symbiosis: is a close ecological relationship between the individuals of two (or more) different species Mutalism: both species benefit Commensalism: one benefits, one unaffected Parasitism: one benefits, one harmed Competition: no one benefits

11. Phylogenetic Tree