ECOLOGY
ORGANISMS AND THE ENVIRONMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The fish population will stay the same size.
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The fish population will start to grow faster.
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The fish population will get smaller or even die out.
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The fish population will start to eat more krill than the squids.
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Detailed explanation-1: -Krill is the main source of food for both the fish and squid. If the squid grows faster than the fish population, what will most likely happen to the fish population? The fish population will stay the same size.
Detailed explanation-2: -If a population exceeds carrying capacity, the ecosystem may become unsuitable for the species to survive. If the population exceeds the carrying capacity for a long period of time, resources may be completely depleted. Populations may die off if all of the resources are exhausted.
Detailed explanation-3: -Carrying capacity can be defined as a species’ average population size in a particular habitat. The species population size is limited by environmental factors like adequate food, shelter, water, and mates. If these needs are not met, the population will decrease until the resource rebounds.
Detailed explanation-4: -When two or more individuals or populations try to use the same limited resources such as food, water, shelter, space, or sunlight, it is called competition.
Detailed explanation-5: -Carrying Capacity Examples In nature, the population of a given area may reach carrying capacity when the maximum population size is reached for a given area with limited resources. For example, a pond inhabited initially by ten turtles will be sustainable for the species’ population.