Question:
Population growth curve is sigmoid, if the growth pattern is
Population growth curve is sigmoid, if the growth pattern is
Updated On: Jun 14, 2022
- logistic
- geometric
- exponential
- accretionary
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The Correct Option is A
Solution and Explanation
Population growth are the mathematical expression of the growth of a population, which are used to predict the growth rate of population from its beginning till its climax stage, i.e., stability. These growth curve may be $S$-shaped or sigmoid shape and $J$-shaped. the former sigmoid curve is logistic growth curve and is formed of five phase; lag phase, positive acceleration phase, logarithmic phase, negative acceleration phase, stationary phase.
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Concepts Used:
Growth
Growth takes place all throughout the lifetime, but imminently. In the case of humans, the rate of growth is rapid until maturity. After achieving maturity, growth is gradual and slows down before it completely comes to an end.
Types of Growth:
- Primary and Secondary Growth: In meristematic cells, the mitotic divisions at the root and shoot apex hike the length of the plant, called Primary Growth while Secondary meristem, which results in an increased diameter of the plant is commonly known as Secondary Growth.
- Vegetative Growth: Prior to flowering, the growth in plants is known as vegetative growth and that includes the formation of leaves, branches, and stems.
- Reproductive Growth: At this stage, the plants begin to flower which is a reproductive member of the plant.