WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
5th Edition
ISBN: 9781319272531
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 16, Problem 3MC
Summary Introduction
Introduction:
Maximum sustainable yield is useful in managing the populations of nearly all species of organisms and natural
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A population grows according to the logistic model
N =
55
1 + 0.9e−1.4t
,
where t is measured in years and N is measured in thousands.
(a) What is r for this population? per year(b) What is the environmental carrying capacity K? thousand(c) This population is subject to harvesting. What is the optimum yield level? thousand
Choose the following term that corresponds with the definitions listed below.
a. Biotic potential
b. Exponential growth
c. Logistic Growth
d. Carrying capacity
1. A growth pattern that forms a S-shaped curve ________
2. Theoretical highest possible reproductive capacity of a population given little to no environmental resistance ________
3. A growth pattern that forms a J-shaped curve __________
4. The theoretical population size that a fiven region can sustain over a prolonged time period ____________
a) The region numbered 3 on the graph represents the __A__ brought on by the limiting factors called __B___.
Select one:
a.
A
B
Carrying capacity
Environmental resistance
b.
A
B
Environmental resistance
Exponential growth
c.
A
B
Exponential growth
Lag phase
d.
A
B
Lag phase
Carrying capacity
b)
The region of the graph that illustrates the exponential growth of a population and the type of graph illustrated are, respectively:
Select one:
a.
Exponential Growth
Type of Graph
4
S-shaped
b.
Exponential Growth
Type of Graph
2
Logistic
c.
Exponential Growth
Type of Graph
3
J-Shaped
d.
Exponential Growth
Type of Graph
1
Exponential
c)
What do the regions numbered 2 and 4 on the graph represent?
Select one:
a.
Region #2
Region #4
Immigration and birth rate is less than emigration and death rate.
Emigration and death rate is less than immigration and birth rate.
b.
Region #2…
Chapter 16 Solutions
WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- 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 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_forwardThebest model for population growth of an annual plant like Phlox drummondii is:a.geometric growth.b.exponential growth.c.logistic growth.d.geometric growth during years with high rainfall and exponential growthduring years with low rainfall.e.geometric growth during years with high rainfall and logistic growthduring years with low rainfall.arrow_forward
- The 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_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_forwardCompare exponential J-curve growth (line A) to logistic S-curve growth (line B). Explain the conditions under which each might occur in might. ✓ ✓ A Carrying Capacity (K) it Number of Individuals B Timearrow_forward
- Based on the equation for logistic population growth, Logistic Growth O A. new Individuals are added most rapidly at low population sizes. This figure displays the equation for logistic population growth and visualizes population growth as a function of time (number of generations) as it approaches carrying capacity. N stands for population size, K stands for carying capacity, and r stands for intrinsic rate of increase. O B. population growth never exceeds K. C. growth rate decreases as N approaches K. D. the population keeps growing when N equals K. K= carrying capacity dN (K-N) dt Number of generations ered MacBook Air F10 F11 吕口 F3 888 F4 F5 F1 F2 $ % & * @ 7 9 2 4 Y P Q W E R F G H K A S D C V N M Z .. * CO B #3 Population size (M)arrow_forwardAmerican crows (species 1) compete with Turkey Vultures (species 2) for carrion. Vultures are 4x as large as crows and eat 4x as much. They also can chase Crows away from carcasses. Therefore, one additional vulture in an area displaces four crows, but it takes 10 additional crows to displace one vulture. The competition coefficients are O alpha12 (imaging the greek alpha with subsript 12) = 10, alpha21 = 4 O alpha12 = 4, alpha21 = 10 O alpha12 = 4, alpha21 = 0.1 O alpha12 0.1, alpha21 = 4arrow_forwardNt= N0 t represents:a.geometric population growth.b.annual growth rate.c.exponential growth rate.d.logistic growth.e.none of the choices apply.arrow_forward
- In the land between the lakes, Elk and Bison Prairie, we currently have 125 bison and 15 elk. These species are known to compete for some but not all of their resources. We are able to determine that the carrying capacity of the bison K1 is 200 and that the alpha (competition coefficient) is 4. The carrying capacity for Elk (K2) is 100 and the beta (competition coefficient) is 1.arrow_forwardA population of 200 bass released in a lake began growing at a rate of 100 fish/yr. A second assessment performed at a later date found that there were 400 fish and the population was growing at a rate of 160 fish/yr. (Assume logistic growth dynamics.) Estimate the maximum sustainable yield (MSY) from the population.arrow_forwarddN/dt= rmaxN represents:a.annual growth rate.b.geometric population growth.c.exponential population growth.d.logistic growth.e.none of the choices apply.arrow_forward
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