Go to the Quizzes Page Changing Ecosystems 0% 842 Created by AbuBakrShalabi Please write your name and email to receive your certificate. 1 / 20 Which of the following would count as a disruption to an ecosystem? Natural disaster Invasive species Change in temperature All of the Above 2 / 20 A climax community is …. an area that reaches its greatest growing potential. the beginning of a new ecological succession. the fire that will cause destruction. the rocks in a new environment. 3 / 20 Why do the populations of invasive species grow so quickly? They are prey to many animals. They have no food in their new ecosystem. Invasive species have no natural predators. 4 / 20 Which of the following are ways humans can cause the loss of biodiversity within an ecosystem? Pollution All of the Above Habitat destruction Over-fishing / Over-hunting 5 / 20 An organism that establishes itself outside of its natural range and begins to harm the environment. Keystone species Extinct species Invasive species Non native species 6 / 20 What is the original cause of eutrophication? Excess fertilizer Too many predators Too many herbivores Too much oxygen 7 / 20 What happens when humans cut down forests to build shopping malls? 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. New animals species form and plants produce more oxygen. 8 / 20 The Final stage of ecological succession is... Mature Tree Growth Pioneer Community Climax Community 9 / 20 What is the difference between primary and secondary succession? primary has no soil and secondary has soil soil is present in both Primary has soil and secondary does not Primary succession already has soil. 10 / 20 As you remove resources from an ecosystem, what happens to the population of an organism? It decreases It increases It stays the same It increases then decreases 11 / 20 Which of the following statements about ecological succession are TRUE? 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. Ecological succession only occurs in water ecosystems. 12 / 20 The sea lamprey is a risk to native fish because: It is ruining beaches. The lamprey causes no risk to native fish. It eats the alage the fish need. It attaches to the body and sucks the blood from the fish. 13 / 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 A predator prey relationship between ground plants and kudzu Parasitism between kudzu and the native plants Commesalism occurring between the kudzo and native plants 14 / 20 What type of succession is shown in the image? Secondary Succession Community Succession Aquatic Succession Primary Succession 15 / 20 Humans extract resources from nature such as coal, oil, and water.What are some likely problems caused by resource extraction? loss of habitats increased availability to energy resources improved air and water quality increasing amounts of pollution 16 / 20 What does the term dynamic equilibrium mean? An unbalanced ecosystem in which the parts constantly change. An overall balance between the different parts of an ecosystem although the parts constantly change. A changing ecosystem that cannot be balanced because of change. A balanced ecosystem that stays the same without any changes. 17 / 20 Any species that occurs outside its native range as a result of deliberate or accidental introduction by humans. Native species Keystone species Invasive species Non native species 18 / 20 Pollution can cause harm to the ___________. all of the above air water land 19 / 20 What type of succession does the image show? Ecosystem Succession Secondary Succession Primary Succession Aquatic Succession 20 / 20 Why does primary succession take longer to reach climax community? Because climax community is in a forrest. Because trees do not perform photosyntheses. Because primary succession already has soil Because primary succession does not have soil Your score is 0% Restart quiz Go to the Quizzes Page