Populations undergoing exponential growth exhibit a(n)
A. S-shaped growth curve.
B. J-shaped growth curve.
C. flat growth curve.
D. bell-shaped growth curve.
Answers
Answer:
✈️
Explanation:
Answer:
well...it is option (A) S-shaped growth curve
Explanation:
Two types of population growth patterns may occur depending on specific environmental conditions:
An exponential growth pattern (J curve) occurs in an ideal, unlimited environment
A logistic growth pattern (S curve) occurs when environmental pressures slow the rate of growth
Exponential Growth
Exponential population growth will occur in an ideal environment where resources are unlimited
In such an environment there will be no competition to place limits on a geometric rate of growth
Initially population growth will be slow as there is a shortage of reproducing individuals that may be widely dispersed
As population numbers increase the rate of growth similarly increases, resulting in an exponential (J-shaped) curve
This maximal growth rate for a given population is known as its biotic potential
Exponential growth can be seen in populations that are very small or in regions that are newly colonised by a species
Logistic Growth
Logistic population growth will occur when population numbers begin to approach a finite carrying capacity
The carrying capacity is the maximum number of a species that can be sustainably supported by the environment
As a population approaches the carrying capacity, environmental resistance occurs, slowing the rate of growth
This results in a sigmoidal (S-shaped) growth curve that plateaus at the carrying capacity (denoted by κ)
Logistic growth will eventually be seen in any stable population occupying a fixed geographic
