1.4.10.H Pyramid of Numbers 1.4.11.H Ecological Relationships 1.4.12.H Population Dynamics

1. 1.4.10.H Pyramid of Numbers1.4.11.H Ecological Relationships1.4.12.H Population Dynamics Follow-Me – iQuiz

2. Q. Comment on the relative sizes of an individual producer and an individual primary consumer in a pyramid of numbers. An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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4. Q. What is a predator? An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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6. Q. What does an ecologist mean by competition? An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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8. Q. What term is used to describe an animal that is killed and eaten? An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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10. Q. True or False. Competition is generally more intense between members of the same species than between members of different species. An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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12. Q. Suggest possible effects of the disappearance of a plant species on the populations of other plants and animals in the ecosystem. An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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14. Q. What is contest competition? An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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16. Q. What term do ecologists use to describe an animal which kills and eats other animals? An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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18. Q. If the population of prey declines suggest two possible consequences for the predators. An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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20. Q. What is scramble competition? An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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22. Q. Apart from competition, state another factor that limits population growth. An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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24. Q. Give an example of predation by naming a predator and its prey. An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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26. Q. Where one organism lives in or on a second species, feeding on it and causing it harm is called … An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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28. Q. Name a factor, other than competition, that controls wild populations. An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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30. Q. Mortality levels resulting from infection by a particular virus tend to decline over the years. Why? An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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32. Q. Marking an animal might endanger it. Why? An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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34. Q. Suggest a role for parasites in the overall scheme of nature. An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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36. Q. Name a predator and give one adaptive technique. An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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38. Q. Suggest an effect on human population of an increased availability of contraception. An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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40. Q. All the members of a species living in an area is referred to as … An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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42. Q. Give four factors that influence the size of the human population. An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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44. Q. Mortality levels tend to be higher in the migratory animal species. Why? An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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46. Q. The population of a predator did not decline following a big reduction in the population of its main prey. Why? An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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48. Q. A relationship between two organisms in which both benefit is called … An animal which kills and eats another animal for food Fox, Chicken, Hawk, Rabbit Population Consumers of this plant may decrease; Numbers of other plant species may increase; Fox, Speed and sharp canine teeth Population control Decrease (no increase) in population; Improved social conditions; Reduced STIs Hazards encountered on migration Predator Different prey Host immunity develops; Natural selection; Vaccination Prey Disease; Parasitism; Food availability; Pollution; Predation; Hunting More conspicuous to predators; Social outcast; Toxic marker Producer larger; Consumer smaller Each organism gets some of resource Mutualism; Symbiosis Starvation or death; Migration; Decline in population; Change food source FALSE One organism loses the resource TRUE Famine; Birth control; War; Disease; Birth rate; Death rate or longevity; Parasitism When two or more organisms fight for a resource that is in short supply

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