Go to the Quizzes Page Changing Ecosystems 0% 840 Created by AbuBakrShalabi Please write your name and email to receive your certificate. 1 / 20 Humans extract resources from nature such as coal, oil, and water.What are some likely problems caused by resource extraction? loss of habitats increasing amounts of pollution increased availability to energy resources improved air and water quality 2 / 20 Kudzu has overgrown many parts of the southern and eastern US and native ground plants have disappeared from the area. This is an example of: Competition occurring between the native and invasive species Commesalism occurring between the kudzo and native plants Parasitism between kudzu and the native plants A predator prey relationship between ground plants and kudzu 3 / 20 A climax community is …. the beginning of a new ecological succession. the fire that will cause destruction. the rocks in a new environment. an area that reaches its greatest growing potential. 4 / 20 Why does primary succession take longer to reach climax community? Because primary succession does not have soil Because climax community is in a forrest. Because trees do not perform photosyntheses. Because primary succession already has soil 5 / 20 Pollution can cause harm to the ___________. water air land all of the above 6 / 20 The Final stage of ecological succession is... Pioneer Community Mature Tree Growth Climax Community 7 / 20 Why do the populations of invasive species grow so quickly? They are prey to many animals. Invasive species have no natural predators. They have no food in their new ecosystem. 8 / 20 What is the difference between primary and secondary succession? primary has no soil and secondary has soil Primary succession already has soil. soil is present in both Primary has soil and secondary does not 9 / 20 The sea lamprey is a risk to native fish because: It attaches to the body and sucks the blood from the fish. The lamprey causes no risk to native fish. It is ruining beaches. It eats the alage the fish need. 10 / 20 Which of the following would count as a disruption to an ecosystem? Change in temperature Invasive species All of the Above Natural disaster 11 / 20 Any species that occurs outside its native range as a result of deliberate or accidental introduction by humans. Native species Invasive species Non native species Keystone species 12 / 20 What happens when humans cut down forests to build shopping malls? New animals species form and plants produce more oxygen. Plants and animals thrive in the new environment and pollution decreases. The shopping mall reduces the amount of pollution in the area. Habitat is altered, plants and animals destroyed, and pollution increases. 13 / 20 An organism that establishes itself outside of its natural range and begins to harm the environment. Extinct species Invasive species Keystone species Non native species 14 / 20 What is the original cause of eutrophication? Too many herbivores Excess fertilizer Too many predators Too much oxygen 15 / 20 As you remove resources from an ecosystem, what happens to the population of an organism? It increases then decreases It increases It stays the same It decreases 16 / 20 What type of succession is shown in the image? Primary Succession Secondary Succession Community Succession Aquatic Succession 17 / 20 What type of succession does the image show? Primary Succession Aquatic Succession Secondary Succession Ecosystem Succession 18 / 20 What does the term dynamic equilibrium mean? A changing ecosystem that cannot be balanced because of change. An overall balance between the different parts of an ecosystem although the parts constantly change. A balanced ecosystem that stays the same without any changes. An unbalanced ecosystem in which the parts constantly change. 19 / 20 Which of the following statements about ecological succession are TRUE? Ecological succession only occurs in water ecosystems. Ecological succession in an ecosystem takes place slowly over time. Ecological succession takes place in both land and water ecosystems. Ecological succession is a process of quick changes in ecosystems. 20 / 20 Which of the following are ways humans can cause the loss of biodiversity within an ecosystem? Pollution All of the Above Over-fishing / Over-hunting Habitat destruction Your score is 0% Restart quiz Go to the Quizzes Page