LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

ECOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What does a limiting factor do?
A
makes a population grow large
B
stops a population from growing large
C
helps organisms adapt to abiotic factors
D
provides geographical boundaries for migration
Explanation: 

Detailed explanation-1: -A limiting factor is anything that constrains a population’s size and slows or stops it from growing. Some examples of limiting factors are biotic, like food, mates, and competition with other organisms for resources.

Detailed explanation-2: -The density dependent limiting factor is the factor which affects the population on the basis of the density. For example, the effect of the disease will be more profound if the population is large, but in small populations few members will get infected.

Detailed explanation-3: -density-independent factor, also called limiting factor, in ecology, any force that affects the size of a population of living things regardless of the density of the population (the number of individuals per unit area).

Detailed explanation-4: -Density-dependent limiting factors cause a population’s per capita growth rate to change-typically, to drop-with increasing population density. One example is competition for limited food among members of a population. Density-independent factors affect per capita growth rate independent of population density.

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