an S
The graph of a logistic population growth is shaped like the letter "S" or an elongated "S". It starts with exponential growth, then slows down as it approaches the carrying capacity before eventually leveling off.
Logistic growth
The logistic growth model is an S-shaped curve that levels off over time as a population approaches its carrying capacity. Initially, growth is exponential until resources become limited, causing the growth rate to slow down. The curve rises rapidly at first, then gradually levels off as the population stabilizes.
In an S-shaped growth curve, growth starts slowly, accelerates as resources are utilized more efficiently, and then plateaus as resources become limiting. This pattern reflects a logistic growth model, where population growth reaches a carrying capacity where the environment can no longer support further growth.
A population that grows until it reaches its carrying capacity typically shows an S-shaped curve, known as logistic growth. Initially, the population grows slowly, then accelerates, and finally levels off as it reaches the carrying capacity of the environment.
An age structure graph can provide insights into a country's population growth by showing the distribution of population across different age groups. A pyramid-shaped graph with a wide base indicates a young population with high birth rates and potential for future growth. In contrast, a graph with a more uniform distribution suggests a stable or declining population growth.
An exponentially growing population is depicted by a population graph with a sharp J-shaped curve. This indicates that the population is growing rapidly, with an increase in the total number of people over time. In other words, there are no significant barriers to population increase, such as a lack of resources, predators, sickness, or a lack of available space, and the birth rate is larger than the death rate. Long-term, nevertheless, this kind of growth is unsustainable since resources are depleted and the environment can no longer accommodate the expanding population. Once the population has reached its carrying capacity, it will stabilise; if the overshoot is too great, a population crash may occur.
It is a bit like an s-curve. See it for yourself at the following link.
On a graph of population growth the size of the population when the growth rate decreases to zero represents an area's carrying capacity.
bell curve
False.
An age structure graph can provide insights into the future population growth of a country by showing the proportions of different age groups in the population. A pyramid-shaped graph with a wider base indicates a younger population and potential for future growth, while a column-shaped graph suggests a stable or declining population. Additionally, the distribution of age groups can offer clues about future social and economic trends, such as the need for services like healthcare or education for specific age cohorts.