ECOLOGY
ORGANISMS AND POPULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The predators and prey are in competition with each other.
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Usually either the predator or the prey will become extinct.
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The relationship controls the population size of both species.
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The predator species usually has exponential growth.
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Detailed explanation-1: -As predator populations increase, they put greater strain on the prey populations and act as a top-down control, pushing them toward a state of decline. Thus both availability of resources and predation pressure affect the size of prey populations.
Detailed explanation-2: -The relationships between predators and prey play an important role in structuring ecological communities, with predators influencing the dynamics of their prey in ways that cascade through ecosystems to affect processes such as productivity, biodiversity, nutrient cycling, disease dynamics, carbon storage, and more.
Detailed explanation-3: -Predator-prey cycles are based on a feeding relationship between two species: if the prey species rapidly multiplies, the number of predators increases-until the predators eventually eat so many prey that the prey population dwindles again. Soon afterwards, predator numbers likewise decrease due to starvation.
Detailed explanation-4: -These factors include available food, species variety available to the predator, and reproduction rate.
Detailed explanation-5: -How does the predator-prey relationship affect a population?-The relationship controls the population size of both species. The predators keep the prey population under control and the size of the population of prey limits the amount of predators an ecosystem can support.