Ecosystem Unit Test
Quiz by Deborah Roll
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25 questions
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- Q11. Which is an example of an abiotic factor in an ecosystem?WaterPlantsAnimalsFood120s
- Q22. Based on this diagram, if all the field mice were to die, which of the following is most likely to happen?The number of ferrets will decreaseThe amount of grass will decreaseThe amount of seeds will decreaseThe number of lynx will increase120s
- Q33. Which species would BEST be able to occupy the same living space without affecting one another? (Think about 2 different birds that live in the same tree. What is the only way they could both survive living in the same tree?)They would have a predator-prey relationshipThey would have very different needsThey would eat the same foodsThey would compete for the same resources120s
- Q44. If acid rain lowers the water quality and kills off the mayfly nymphs, which other species is likely to be affected the most?frogssnailsbirdstrout120s
- Q55. Plants sometimes have fungi living on their roots that help to give the plant nutrients while the plants provide the fungi with a place to live. What is the best name for this relationship? (Use your +, -, and 0 to help you decide)mutualismcompetitionpredation (predator/prey)parasitism120s
- Q66. Which of the following would best represent competition in an ecosystem?Barnacles attaching themselves to whalesLions and cheetahs hunting gazelles in the savannahMistletoe growing on treesClownfish living in sea anemones120s
- Q77. What would be the impact on producers and consumers if the decomposers in an ecosystem suddenly disappeared?There would be too much energy available in the ecosystemThere would be most carbon dioxide in the atmosphereThere would be fewer nutrients available in the soilThere would be less oxygen available120s
- Q88. What is most likely to happen to two species with similar needs that occupy the same niche in an ecosystem?The two species would learn to cooperate and share the nicheThe two species will compete against one another and one may die off.The two species will support each other through mutualismThe two species will compete against one another and both will die off120s
- Q99. How are parasitism and predation DIFFERENT from one another?Parasitism only benefits one species while predation benefits both species.In a parasitic relationship, the host is not killed while in a predation relationship, the prey dies.In a parasitic relationship, the host is killed while in a predation relationship, the prey survives.Parasitism involves both species benefiting while predation only benefits one of the species.120s
- Q1010. Based on the table below, how would you describe the relationship between these two North Carolina organisms?CompetitionCoexistenceCommensalism120s
- Q1111. In a park that supports berry bushes, deer, and wolves, a wildfire occurs that wipes out a quarter of the park. What will most likely happen to the things that live there?The berry bushes will be affected more than anything elseAll species will be affected equallyThe deer will be affected more than anything elseThe wolves will be affected more than anything else120s
- Q1212.Which type of organism is most important to a forest ecosystem?primary consumersproducersscavengersecondary consumers120s
- Q1313. How will cutting down forests affect the level of carbon dioxide in the atmosphere?Carbon dioxide will increase because of less photosynthesisCarbon dioxide will remain constant as animals remove the carbon dioxide through respirationCarbon dioxide will decrease because of less photosynthesisCarbon dioxide will decrease due to an more respiration120s
- Q1414. What do primary, secondary, and tertiary consumers all have in common?They are all autotrophs.They are all heterotrophsThey all produce energy for other organismsThey are all at the top of the energy pyramid.120s
- Q1515. Why is nitrogen important for plants and animals to have?They need it to be able to do photosynthesis.They need it make proteins which help repair and build cells.They need it to make glucose and oxygen.120s
