8. Which describes several species living and interacting with other species in an
ecosystem?
A. Community
B. Ecosystem
C. Environment
D. Population
9. Which organization is in its correct order from smallest to largest?
A. Biosphere, ecosystem, community, population, organism
B. Biosphere, population, ecosystem, community, organism
C. Organism, population, community, ecosystem, biosphere
D. Organism, community, ecosystem, population, biosphere​