Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 43.3, Problem 1TYK
Summary Introduction
Introduction:
In human geography or biology, population growth is the rise in the count of people or individuals who lives in a state or territory. The rate of population change is calculated by given formula:
Where,
r = per capita rate of population growth,
N =
K =
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Let’s look at our population of 5,000 individuals (N) with a growth rate (r) of 0.01. What if K = 10,000? How many more individuals will be added during the next year?
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A population has 50 individuals in it, but the habitat's carrying capacity is 100 individuals. The birth rate is 2.0 and the death rate is 1.8. How many individuals would you expect to be in the population in the following generation?
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Chapter 43 Solutions
Principles of Biology
Ch. 43.1 - If we mark 110 Rocky Mountain goats andrecapture...Ch. 43.1 - Prob. 1TYKCh. 43.2 - Prob. 1BCCh. 43.2 - Prob. 1TYKCh. 43.2 - Prob. 2TYKCh. 43.2 - Prob. 3TYKCh. 43.3 - What is the population growth per unit of time...Ch. 43.3 - Prob. 1TYKCh. 43.3 - Prob. 2TYKCh. 43.4 - Prob. 1CC
Ch. 43.4 - Prob. 1BCCh. 43.4 - Prob. 2CCCh. 43.4 - Prob. 3CCCh. 43.4 - Which types of factors tend to stabilize...Ch. 43.4 - A species interaction in which one species...Ch. 43.4 - According to the competitive exclusion hypothesis....Ch. 43.4 - Prob. 3TYKCh. 43 - A student decides to conduct a mark-recapture...Ch. 43 - Prob. 2TYCh. 43 - Prob. 3TYCh. 43 - Prob. 4TYCh. 43 - Prob. 5TYCh. 43 - Prob. 6TYCh. 43 - Prob. 7TYCh. 43 - Prob. 8TYCh. 43 - Prob. 9TYCh. 43 - Prob. 10TYCh. 43 - Prob. 1CCQCh. 43 - Prob. 2CCQCh. 43 - A principle of biology is that biology affects our...Ch. 43 - Prob. 1CBQCh. 43 - Prob. 2CBQ
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- When r is a positive number, the population size is (a) stable (b) increasing (c) decreasing (d) either increasing or decreasing, depending on interference competition (e) either increasing or stable, depending on whether the species is semelparousarrow_forwardSpecies with limited resources usually exhibit a(n) ________ growth curve. a. logistic b. logical c. experimental d. exponentialarrow_forwardThe per capita growth rate of a population where dispersal is not a factor is expressed as (a) i + e (b) b d (c) dN/dt (d) rN(K N) (e) (K N) Karrow_forward
- Given: N1=8000 N=250 r=1 t=5 years Question: Do you think the population will grow at that rate? Explain your answer.arrow_forwardA population has 50 individuals in it, but the habitat's carrying capacity is 100 individuals. The birth rate is 2.0 and the death rate is 1.8. How many individuals would you expect to be in the population in the following generation? Select one: a. 50 b. 60 c. 5 d. 10 e. 55 How do you solve this problem? Thank You!arrow_forwardWhich of the following populations would be growing? a) Geometric rate (1) = 0.63 b) Exponential growth rate (r) = 0.63 c) Net reproductive rate (R0) = 0.63 d) All of the above populations are growingarrow_forward
- when population density does not change over time 1. then r=0 and lamba=1 2. then r=1 and lambda=0 3. then r and lambda =1 4. then r and labmda =0 CHECK ALL THAT APPLYarrow_forwardWhich of the following equations defines population size? Question 3 options: (Pt+1) = B - I + D + I – E (Pt1) = N2 + I - D + B – E (Pt2) = Pt1 + B - D + I – E (Pt) = B - I + D – E (Pt+1) = B - I + D + I – Earrow_forwardA population grows exponentially about 2% per year. Assume that the population starts with 15 individual. How many individual will have after 10 years? After 20 years? How long will it take for the population to doube?arrow_forward
- The“mean generation time” of a population equals:a.(x lxmx)/R0.b.nx.c.lx mx.d.x lx mx.e.none of the choices apply.arrow_forwardWhen does the growth rate of a population following the logistic model equal zero?the logistic model is given as dN/dt = rN (1-N/K)arrow_forwardSpecies with limited resources usually exhibit a(n)________ growth curve.a. logisticb. logicalc. experimentald. exponentialarrow_forward
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