5. Practicing dynamite to catch fish has serious effect on the marine ecosystem fish population is reduced
of fish diversity. Which is the best method in catching fish to avoid destruction of our marine ecosystem?
A.using poison
B.big size of nets to catch many fishes
D.traditional way of fishing amintain fish diversity

6. Owl eats a mouse that has eaten rice grains. This shows
A Energy Pyramid B. Food Chain
C. Food Web
D. Trophic level

7. Which statement best describes a food web?
A. Plant manufacture food
B. All animals are flesh-eaters
C. One animal eats another animal.
D. No living things can exist totally independent from other living

8. Which indicates the correct order of organisms in the food chain?
A. decomposers –>insect –>lizard –>snake –>plants
B.insects –>plants –>snake –>lizard –>decomposers
C.plants –>decomposers –>snake –>lizard –>decomposers
D.plants –>insects –>lizard –>snake –>decomposers

9. which ecological model shows acomplex interaction from producers to decomposers?
A. ecosystem
B. food chain
C. food web
D. population​