Teguh Maynurrobi125040201111015Siti Fadilah125040201111024Muhammad Muslim125040201111025Anita Qurania1250402011110311. The study of interactions among organism and their environment is called ?a. Ecosystemb. Agroecosystemc. Ecologyd. Agroecology2. Dispersion is frequebcy or patterns of individuals within a range, except ...a. Uniformb. Rangec. Randomd. clumped3. As population increases the rate of growth is ... by density dependent factors either by increasing the death rate or decreasing the birth rate.a. Slowedb. Fastedc. Shortedd. medium4. what the different between preindustrial stage and postindustrial stage ?preindustrial stagepostindustrial stage

a.High birthLower death rate

b.Low birthHigh birth

c.Death rateBirth rate

d.High birthLow birth

5. communites of organisms are ?a. Producens-dekomposer-consumensb. Producens-consumens-dekomposerc. Consumens- Producens-dekomposerd. Consumens-dekomposer-Producens6. Mention 2 main types of relantionships ?a. Predation and symbiosisb. Symbiosis and Mutualismc. Symbiosis and Parasitsmd. Parasitism and commensalism7. The relantionship benefits one species but reither helps nor harms the other is called ?a. Predationb. Parasitismc. Mutualismd. Commensalism 8. Mantion 2 kind of succession ?a. Primary succession and pioneer communityb. Primary succession and secondary successionc. Primary succession and climax communityd. pioneer community and climax community9. pathogen is ?a. parasite that cause diseaseb. favorable for plant parasiticc. parasites that feed plantsd. parasites are active on the ground10. what the formula for growth rate ?a. (birth + death) + (immigration + emmigration)b. (birth + death) + (immigration - emmigration)c. (birth - death) + (immigration + emmigration)d. (birth - death) + (immigration - emmigration)11. Phosphorus that moves energy from ... to another molecule.a. DNAb. RNAc. ATPd. ADP12. Gross primary productivity is rate at which energy is captured and stored in ...a. Plant tissuesb. Plant cellc. Animal tissuesd. Animal cell13.

a. The Hydrological cycleb. The Carbon Cyclec. The Phosphorus Cycled. The Nitrogen cycle14. Represented by a sequence of organisms through which energy and nutrients flow from one organism to another is called ?a. food chainb. food webc. Trophic leveld. a and b true15. ... explains how energy from the sun is captured by green plants and used to make food.a. Transpirationb. Metabolismc. Photosyntheticd. Respiration16. What are Factors Affecting Ecosystems ?a. Soil, Available Waterb. Sunlight, Temperaturec. Abiotic factors and biotic factorsd. All true

17. Natural ecosystems gain resources, use it and dispose of ?a. wastes through recycling.b. Wastes through reducingc. Wastes through replacingd. Wastes through trashing18. Photosynthesis explains how energy from the sun is captured by ?a. green plantsb. Algaec. Fungid. Amoeba19. what is Xerophytes ?a. plants that live in the desert biomeb. plant that live in the seac. plant that live in the vulcanicd. plant that live in the forest20. To "make the best of" where they live, organisms make use of other organisms by ?a. eating themb. helping themc. leaving themd. go out them