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