II. Write the letter of the correct answer in the space before each number. 9. A community of living and non-living things that interact. a. solar system b. ecosystem c. universe d. human body system 10. It has plants mostly mangroves and animals like crustaceans and birds a. Mangrove swamp b. coral reef c. tropical rainforest d. ocean 11. An ecosyatem that experience high average temperatues and amount of rainfall. a. Mangrove swamp b. coral reef c. tropical rainforest d. ocean 12. An interactive area of coral reef development containing many individual reefs and habitats a. Mangrove swamp b. coral reefc. tropical rainforest d. ocean 13. A low elevation of frsh, brackish, or saltwater wetlands that are dominated by woody plants. a. swamp b.river C. ocean d. grassland 14. It is sometimes called the "rainforest of the ocean". a. coral reefs b. mangrove swamps c. tropical rainforest d. river 15. Serve as breeding or nesting grounds of different species a. coral reefs b. mangroves c. tropical rainforest d. river​