Which of the following statements about exponential growth is false? Select one: a. Exponential growth does…
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Question “Which of the following statements about exponential growth is false? Select one: a. Exponential growth does…”
Answer
Question
1
Answer: (a). Exponential growth doesn’t add more people as N grows.-( FALSE)
Explanation:
A population experiencing exponential growth will see that regardless of N (population size/number), the population will grow at an exponential rate and follow the exponential curve.
*option “b”, in reality, is TRUE. Any population will either face environmental resistance or suffer from a lack of biotic potential. It can’t continue an exponential growth forever.
*Option “c” is TRUE. – In exponential growth, the “r” (growth rate) is constant. It doesn’t depend upon the increase in population.
*Option “d” is TRUE – it is an exponential growth property of a population that doesn’t depend upon the number of individuals within the population (N).
Question
2
Answer: (b), when the carrying capacity has been reached.
Explanation:
The “J”-shaped population curve shows that the population grows exponentially in abundance of resources, and the rate of growth is increasing with the passing time.
However, once the organisms get larger and resources become scarcer, the population’s growth rate starts to slow down. Eventually the population reaches a point where its carrying capacity is exhausted and then continues to grow at a steady rate.
Therefore, the “J-shaped” curve is now “S-shaped”.
* Option “a” is incorrect. If more resources were available, the population would have continued to grow exponentially.
* Option “c” is also incorrect. We can’t plot the data of the semi-loggraph paper to get an “S-shaped curve”.
Option “d” is also incorrect. If reproduction ceases, the population size will continue falling because eventually the members of that population will die. It will not produce an “S-shaped” curve.
Conclusion
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