EVERYDAY SCIENCE

SCIENCE

ENVIRONMENTAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If a population grows larger than its environmental carrying capacity, then
A
death rate may rise.
B
death rate may fall significantly.
C
birth rate may rise significantly.
D
immigration rate may increase.
Explanation: 

Detailed explanation-1: -If the population grows larger than the carrying capacity, then the environment would not be able to support it. Therefore, it is likely that individuals would die due to lack of resources. Therefore, the death rate of the population may rise if the population exceeds the carrying capacity of its environment.

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: -When the population grows larger than its carrying capacity, there will not be enough resources available to support all members of the population. At this point, the death rate will increase and the population size will decrease back toward the carrying capacity.

Detailed explanation-4: -If a population grows larger than its carrying capacity then there is too little amount of resources to support it. Many individuals will die out and the population will drop to below its carrying capacity.

Detailed explanation-5: -Natural decrease occurs when death rate is greater than birth rate. This means that more deaths occur in a population than babies are born so population numbers decline.

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