Question

diagram indicate the a. return of chemical substances to the environment b. order of importance of the various organisms c. direction in which organisms move in the environment d. the flow of energy from heterotrophs to autotrophs e. direction of energy flow through a series of organisms 17. The diagram represents a food chain. The arrows in the serious threat to many forested areas. Which would probably be the most ecologically sound method of gypsy moth control? a. increased application of DDT b. introduction of a biological control c. removal of its forest habitat d. contamination of its food source e. build more malls to housed the moths in pet stores 18, Gypsy moth infestations of rural areas of New York State may pose a potentially 9. Which human activity would most likely result in the addition of an organism to t a. cover cropping b. use of erosion controls c. issuing more hunting licer d. use of pollution controls e.. habitat destruction endangered species list? 20. An aquarium ecosystem is shown in the ncompanying diagram. In this ecosystem, the biotic are the fish, water, and snails and gravel c. plants and gravel plants, and snails e. water 21. Which ecological unit is defined as so to include abiotic factors? b. biomes c. community d. ecosystem e.biosphere 22. Which concept best describes the place an organism lives i a chemical cycle b. niche c. food web d. habitat e 23. Which of the following best describes an intimate ecological association in which one organism benefits and the other is harmed in the living relationship? a. Parasitism b. Mutualism c. Predation c. both a and b e.both b and 24. The threat of global warming can be addressed by all of the following, except a. switch from fossil fuels to nuclear fuels b. increase the efficiency of energ c. less recycling d. slowing population growth 25. The organisms that are classified as detritovores are the decomposers b. producers c. herbivores d. autotrophs e. less deforestation iv

Answer 1

Hi Answer:

Q.18.Gypsy moth infestations of rural areas of New York State may pose a potentially serious threat to many forested areas. Which would probably be the most ecologically sound method of gypsy moth control?

Answer: Option B [Introduction of a biological control]

Q.19. Which human activity would most likely result in the addition of an organism to the endangered species list?

Answer: Option E [Habitat destruction]

Q.20

Answer: Option D [Fish, plants and snails]

Q.21. Which ecological unit is defined as so to include abiotic factors?

Answer: Option D [Ecosystem]

Ecosystem is the lowest level of organization which includes abiotic (non-living) factors, whereas the population, biomes, community and biosphere include biotic (living) factors.

Q.22. Which concept best describes the place an organism lives in an ecosystem?

Answer: Option D [habitat] is the type of natural environment where a particular species lives.

Q.23. Which of the following best describes an initimate ecological association in which one organism benefits and the other is harmed in the living relationship?

Answer: option A [Parasitism]

In this type of relationship one organism get benefit whereas another is harmed due to the presence of first one.

Q,24, the threat of global warming can be addressed by all of the following except

Answer: option c [less recycling]

By Less recycling we cannot address global warming infect if we recycle things more then it will help to fight with global warming problem. Whereas other options help to fight with the global warming problem.

Q25. The organisms are classified as detritovores are the

Answer: Option A [Decomposers] These organisms feeds on the detritus material and help in the decomposing the organic material of living organisms.