Go to the Quizzes Page Changing Ecosystems 0% 602 Created by AbuBakrShalabi Please write your name and email to receive your certificate. 1 / 20 Which of the following statements about ecological succession are TRUE? Ecological succession in an ecosystem takes place slowly over time. Ecological succession is a process of quick changes in ecosystems. Ecological succession only occurs in water ecosystems. Ecological succession takes place in both land and water ecosystems. 2 / 20 What is the original cause of eutrophication? Too many predators Too many herbivores Excess fertilizer Too much oxygen 3 / 20 Why do the populations of invasive species grow so quickly? Invasive species have no natural predators. They have no food in their new ecosystem. They are prey to many animals. 4 / 20 The sea lamprey is a risk to native fish because: It attaches to the body and sucks the blood from the fish. It is ruining beaches. The lamprey causes no risk to native fish. It eats the alage the fish need. 5 / 20 What type of succession does the image show? Ecosystem Succession Primary Succession Secondary Succession Aquatic Succession 6 / 20 What does the term dynamic equilibrium mean? A changing ecosystem that cannot be balanced because of change. A balanced ecosystem that stays the same without any changes. An unbalanced ecosystem in which the parts constantly change. An overall balance between the different parts of an ecosystem although the parts constantly change. 7 / 20 What is the difference between primary and secondary succession? Primary succession already has soil. primary has no soil and secondary has soil Primary has soil and secondary does not soil is present in both 8 / 20 What happens when humans cut down forests to build shopping malls? New animals species form and plants produce more oxygen. 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. 9 / 20 Which of the following are ways humans can cause the loss of biodiversity within an ecosystem? Over-fishing / Over-hunting Pollution Habitat destruction All of the Above 10 / 20 The Final stage of ecological succession is... Pioneer Community Mature Tree Growth Climax Community 11 / 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 12 / 20 Which of the following would count as a disruption to an ecosystem? Invasive species All of the Above Natural disaster Change in temperature 13 / 20 As you remove resources from an ecosystem, what happens to the population of an organism? It increases then decreases It stays the same It increases It decreases 14 / 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: A predator prey relationship between ground plants and kudzu Parasitism between kudzu and the native plants Competition occurring between the native and invasive species Commesalism occurring between the kudzo and native plants 15 / 20 Any species that occurs outside its native range as a result of deliberate or accidental introduction by humans. Invasive species Non native species Native species Keystone species 16 / 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 17 / 20 Pollution can cause harm to the ___________. water land air all of the above 18 / 20 A climax community is …. the fire that will cause destruction. the beginning of a new ecological succession. an area that reaches its greatest growing potential. the rocks in a new environment. 19 / 20 What type of succession is shown in the image? Aquatic Succession Community Succession Primary Succession Secondary Succession 20 / 20 Humans extract resources from nature such as coal, oil, and water.What are some likely problems caused by resource extraction? increased availability to energy resources improved air and water quality loss of habitats increasing amounts of pollution Your score is 0% Restart quiz Go to the Quizzes Page