Campbell Biology:conc.(ll)-w/access
9th Edition
ISBN: 9780134784427
Author: Reece
Publisher: PEARSON
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Chapter 36, Problem 6TYK
With regard to its rate of growth, a population that is growing logistically
a. grows fastest when density is lowest.
b. has a high intrinsic rate of increase.
c. grows fastest at an intermediate population density.
d. grows fastest as it approaches
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Students have asked these similar questions
Applying what
you have learned about population growth and carrying capacity,
how would you use this concept in facing any situations/problems
in your life?
Which of the following is true of a population approaching its carrying capacity?
a) The population’s emigration is greater than its immigration.
b) The population has access to unlimited resources.
c) Intraspecific competition decreases.
d) The population’s rate of increase approaches zero.
As a population size approaches (i.e. is almost equal to) carrying capacity for a certain population, which of the following outcomes is predicted by the logistic growth equation?
a.
The population growth rate will not change
b.
The population growth rate will approach zero
c.
The population size will increase exponentially
d.
The carrying capacity of the environment will increase
Chapter 36 Solutions
Campbell Biology:conc.(ll)-w/access
Ch. 36 - Use this graph of the idealized exponential and...Ch. 36 - The graph below shows the demographic transition...Ch. 36 - Prob. 3TYKCh. 36 - To figure out the human population density of your...Ch. 36 - The term (K N)/K a. is the carrying capacity for...Ch. 36 - With regard to its rate of growth, a population...Ch. 36 - Which of the following represents a demographic...Ch. 36 - Skyrocketing growth of the human population...Ch. 36 - According to data on ecological footprints, a. the...Ch. 36 - What are some factors that might have a...
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- A population that grew in close relation to the amount of resources available in the environment, would experience A. exponential growth, such as shown on the J-shaped curve B. logistic growth, such as shown on the S-shaped curve C. unpredictable growth, such as shown on the ?-shaped curve D.logistic growth, such as shown on the J-shaped curve E. exponential growth, such as shown on the S-shaped curvearrow_forwardA good number of snail population in the stagnant waters between rice paddies is growing under natural conditions with limited resources. As the snail population increases in size, how will population density affect its growth rate? a. Population density will increase and the rate of population growth will eventually slow. b. Population density will remain constant and population growth will increase. c. Population density will become unstable and population growth will stop. d. Population density will decrease and population growth will eventually increase.arrow_forwardThe population of individuals is growing at a continuous rate. The maximum growth rate is 0.35 and the carrying capacity of the population is 800 individuals. a. If the population size is 20 individuals, find the population growth rate. Show your work. b. If the population was nearing the carrying capacity, how would this rate compare to the calculated rate in part a? A calculation is not required.arrow_forward
- Which statement about population growth is true? A. Population growth models do not apply to humans. B. Population growth can be exponential for only as long as environmental conditions are favorable. C. Population growth can continue indefinitely. D. Population growth of field samples always has a λ of approximately 1.arrow_forwardThe carrying capacity (K) is the maximum population size that can be supported or sustained by a given environment. Which of the following statements about the carrying capacity is NOT true? Select one: a. We can think of K as some "average" value that a given environment can support. b. Environmental fluctuations cause the carrying capacity to fluctuate over time. c. Once a population reaches its carrying capacity, the size of the population remains constant. d. When a population overshoots K, individuals die due to lack of resources.arrow_forwardHow does the logistic growth model of population growth differ from the exponential growth model? A. The graph of the exponential model is S-shaped. B. The logistic growth model shows an unrestricted growth rate. C. The logistic growth model considers the environment's carrying capacity. D. The exponential growth model shows a restricted growth rate.arrow_forward
- A population that did not grow in close relation to the amount of resources available in the environment, and dramatically overshot the carrying capacity, would experience: A. logistic growth, such as shown on the S-shaped curve B. exponential growth, such as shown on the J-shaped curve C. unpredictable growth, such as shown on the ?-shaped curve D. exponential growth, such as shown on the S-shaped curve E.logistic growth, such as shown on the J-shaped curvearrow_forwardDuring exponential growth, a population always(A) has a constant per capita population growth rate.(B) quickly reaches its carrying capacity.(C) cycles through time.(D) loses some individuals to emigrationarrow_forwardUsing the graph which country shows the most population growth?A United States B Kenya C they both are growing D Population growth cannot be determined from the graphsarrow_forward
- Any factor in the environment that causes population growth to decrease is a?arrow_forwardHuman beings, like other K-selected species live close to carrying capacity and usually have logistic growth rates. However, population growth for humans has exhibited exponential growth for over the last 350 years (since the Industrial Revolution). Which of the following can explain this phenomenon? Select one: a. Humans have been able to achieve their biotic potential. b. Humans have increased environmental resistance by limiting density-dependent factors c. Humans have been able to continually increase their carrying capacity. d. Humans have decreased environmental resistance by increasing density-independent limiting factors.arrow_forwardA population of deer suddenly decreases dramatically in number. This most likely occurred because ____. a. the was a gradual decrease in environmental resistance b. the population approached its carrying capacity c. population crashes are common and expected on a regular basis regardless of population size d. the number of resources increased steadily e. the population increased beyond its carrying capacityarrow_forward
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