Exponential vs. Logistic Growth: R & K Strategies

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Questions and Answers

Under which circumstances would a population most likely exhibit exponential growth?

When the birth rate equals the death rate.
When a population reaches its carrying capacity.
When resources are limited and the environment is crowded.
When the environment is uncrowded and resources are abundant. (correct)

Which of the following is a primary characteristic of K-strategist species?

Rapid reproduction rates
Small body size
Multiple reproductive events throughout their lifespan (correct)
Early maturation

What is the main factor that distinguishes logistic growth from exponential growth?

The effect of limiting factors. (correct)
A constant growth rate.
The absence of mortality.
The presence of unlimited resources.

In an environment undergoing rapid and unpredictable changes, which reproductive strategy would likely be more successful?

<p>R-strategist (D)</p> Signup and view all the answers

Which scenario best exemplifies the concept of limited (logistic) growth?

<p>A population of deer in a forest initially grows rapidly, but their growth slows as resources become scarce. (C)</p> Signup and view all the answers

Flashcards

Exponential Growth

Continuous, theoretical growth, without limitations.

Limited Growth (Logistic)

Growth affected by limiting factors and carrying capacity; actual growth.

R-Strategists

Organisms that reproduce rapidly in uncrowded environments with abundant resources, often with many small young, rapid maturation, and reproducing once.

K-Strategists

Organisms that reproduce slowly, typically having few large young, slow maturation, and reproducing many times.

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Study Notes

Exponential growth is continuous and theoretical.
Limited (logistic) growth is affected by limiting factors and represents actual growth.

R-Strategists

Some organisms are opportunistic.
They reproduce rapidly when the environment is uncrowded and resources are vast.
R-strategists produce many small young, mature rapidly, and reproduce only once.
Insects are an example of r-strategists.