1) In the simulation, when the predator population collapses, what happens to the herbivore population initially? a) It decreases immediately b) It increases rapidly c) It remains stable d) It oscillates unpredictably 2) Which type of interaction benefits both species involved? a) Predation b) Parasitism c) Competition d) Mutualism 3) Intraspecific competition in the simulation occurs when: a) Predators hunt hebivores b) Herbivores compete with each other for limited gras c) Parasites infect herbivores d) Symbionts help herbivores 4) Why don't parasites typically kill their host immediately? a) They are not strong enough b) They need the host to survive for their own reproduction c) They prefer weakened hosts d) The host develops immunity 5) What is a trophic cascade? a) When water flows through an ecosystem b) When changes in one population affect multiple trophic levels c) When predators migrate d) When plants grow rapidly 6) In Savanna ecosystem, oxpeckers and zebra demonstrate: a) Predation b) Parasitism c) Mutualism d) Competition 7) Carrying capacity refers to: a) They speed at which populations grow b) The maximum population size an environment can sustain c) The weight animals carry d) The number of predators needed 8) Density-dependent factors affect populations when: a) Temperature changes b) Rainfall decreases c) Population size increases d) Seasons change 9) In a stable ecosystem, populations: a) Never change b) Fluctuate around an equilibrium c) Always increases d) Always decrease 10) Which interaction shows (+/-) relationship? a) Mutualism b) Competition c) Parasitism d) Commensalism

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