Biological Science
Biological Science
5th Edition
ISBN: 9780321743671
Author: Scott Freeman
Publisher: PEARSON
bartleby

Concept explainers

bartleby

Videos

Question
Book Icon
Chapter 54, Problem 1TYK
Summary Introduction

Introduction:

The type of growth pattern varies from population-to-population and with habitat. The population growth curves can take various forms like an S-shaped curve, J-shaped curve or exponential curve. The type of growth where the population grows rapidly without any decline is called exponential growth. It is also the rate of change per unit time. The population size in the exponential growth does not limit the growth rate.

Expert Solution & Answer
Check Mark

Answer to Problem 1TYK

Correct answer:

The defining feature would be that the per capita growth rate is constant. The per capita growth rate does not change during the exponential growth.

Explanation of Solution

Justification/Explanation for the correct answer:

Option (b) is given that the growth rate remains constant in exponential growth. During the exponential growth, the per capita growth rate is constant, unlike the logistic growth. It does not depend on the population size. Per capita growth rate if is higher, the population size increases gradually.

The per capita growth rate is given as the function of “N” (population size) and “t” (time interval) and is represented as r=dNdt, where “r” is per capita growth rate. The value of “r” is high if the increase in the population within a short interval of time is high. Thus, the large value of “r” indicates the increased population size. Hence, option (b) is correct.

Explanation for the incorrect answers:

Option (a) is given that the population grows quickly in exponential growth. In the exponential growth rate, the population grows rapidly; however, it is not a defining feature. So, it is incorrect.

Option (c) is given that the growth rate increases very fast over time in exponential growth. This pattern of growth can be observed in other growth graphs also like in J-shaped or sigmoid-shaped curves. This is not a defining feature of exponential growth. So, it is incorrect.

Option (d) is given that the growth rate is quite high in exponential growth. The growth rate does not increase rapidly and the growth rate is not very high. The growth occurs gradually. So, it is incorrect.

Hence, the options (a), (c), and (d) are incorrect.

Conclusion

Thus, the constant per capita growth rate of the populations serves as the defining feature of the exponential growth rate.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Diagram of check cell under low power and high power
a couple in which the father has the a blood type and the mother has the o blood type produce an offspring with the o blood type, how does this happen? how could two functionally O parents produce an offspring that has the a blood type?
What is the opening indicated by the pointer? (leaf x.s.) stomate guard cell lenticel intercellular space none of these
Knowledge Booster
Background pattern image
Biology
Learn more about
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
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Text book image
Aquaculture Science
Biology
ISBN:9781133558347
Author:Parker
Publisher:Cengage
Text book image
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Text book image
Comprehensive Medical Assisting: Administrative a...
Nursing
ISBN:9781305964792
Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa
Publisher:Cengage Learning
Text book image
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Biology
ISBN:9781305967359
Author:STARR
Publisher:CENGAGE L
Text book image
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
POPULATION REGULATION AND LIMITING FACTORS | DENSITY INDEPENDENT AND DENSITY DEPENDENT FACTORS; Author: BioVidyalaya;https://www.youtube.com/watch?v=mB-AB-5Wnhs;License: Standard YouTube License, CC-BY
Population growth; Author: SiouxScience;https://www.youtube.com/watch?v=XnaC9iOumVA;License: Standard YouTube License, CC-BY