Predation 0.0 / 5 ? BiologyEcology, ecosystems and environmental biologyA2/A-levelAQA Created by: meganbradfield1Created on: 08-06-16 19:26 What is a predator? An organism that feeds on another organism. 1 of 9 What happens when predators eat their prey? Increased competition between predators for prey that is left 2 of 9 What does increased competition between predators result in? A reduction in the pop of predators as some are unable to obtain enough prey for their survival 3 of 9 What does fewer predators mean? Fewer prey are eaten and so the prey population increases - therefore the predator population increases as there is more food. 4 of 9 Why are fluctuations in population size in a graph less severe? Organisms eat a variety of foods (not just prey) 5 of 9 What are other reasons other than predation for fluctuation in population size in graphs? Disease and climate 6 of 9 What do population crashes cause? Selection pressure (individuals who avoid predators and withstand disease/harsh climate survive and become adapted) 7 of 9 What are other reasons other than predation for fluctuation in population size in graphs? Disease and climate 8 of 9 What do population crashes cause? Selection pressure (individuals who avoid predators and withstand disease/harsh climate survive and become adapted) 9 of 9
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