1) A biotic factor is... a) dead b) living c) chemical d) physical 2) Which of the following is an example of a biotic factor? a) b) c) d) 3) Which of the following grazing levels would produce the highest plant biodiversity? a) b) c) d) 4) Which of the following best explains the level of biodiversity seen under these grazing conditions. a) Biodiversity will increase as the dominant plant species will out-compete other species b) Biodiversity will increase as the dominant plant species are kept in check by grazers, allowing other plant species the opportunity to thrive c) Biodiversity will decrease as the dominant plant species will out compete other species d) Biodiversity will decrease as grazers eat all plant species present 5) Which of the following best explains the level of biodiversity seen under these grazing conditions. a) Biodiversity will decrease as the dominant plant species will out-compete other species b) Biodiversity will decrease as the dominant plant species are kept in check by grazers, allowing other plant species the opportunity to thrive. c) Biodiversity will increase as the dominant plant species are kept in check by grazers, allowing other plant species the opportunity to thrive. d) Biodiversity will increase as the dominant plant species will outcompete other species 6) Which of the following best explains the level of biodiversity seen under these grazing conditions. a) Biodiversity will decrease as the dominant plant species will out compete other species b) Biodiversity will increase as the dominant plant species will out compete other species c) Biodiversity will increase as the dominant plant species are kept in check by grazers, allowing other plant species the opportunity to thrive. d) Biodiversity will decrease as dominant plant species are kept in check by grazers, allowing other plant species the opportunity to thrive. 7) From this examples in the image, which statement is correct? a) The zebra and crocodile are both prey. b) The zebra and crocodile are both predators. c) The zebra is the predator and the crocodile the prey d) The crocodile is the predator and the zebra the prey. 8) What will happen to the salmon population if the bear population increases?  a) Increase b) Decrease c) Not change d) Explode 9) The prey population is decreasing. This means that.... a) both the frog and snake populations will increase. b) both the frog and snake population will decrease. c) the frog population will increase and the snake population decrease. d) the frog population will decrease and the snake population increase. 10) The predator population is increasing. This means that... a) the eagle and vole population will both increase. b) the eagle and vole population will both decrease. c) the eagle population will decrease and the vole population increase. d) the eagle population will increase and the vole population decrease.

N5 Biotic factors

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