Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 45, Problem 11RQ
Species with limited
- logistic
- logical
- experimental
- exponential
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In which one of the following species is temporary exponential growth seen the most?
invasive
fish
insects
trees
There are two types of life strategies used by organisms to survive in their environment.
1. K-selected strategy - growth rate is near the carrying capacity
2. r-selected strategy - growth rate is near biotic potential
Match the characteristices below to the life strategy they represent
J-cruve
Logistic Growth
Long life span
Few offspring
Which 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 growing
Chapter 45 Solutions
Biology 2e
Ch. 45 - Figure 45.2 As this graph shows, population...Ch. 45 - Figure 45.10b If the major food source of the...Ch. 45 - Figure 45.16 Age structure diagrams for rapidly...Ch. 45 - Which of the following methods will tell an...Ch. 45 - Which of the following is best at showing the life...Ch. 45 - Humans have which type of survivorship curve? Type...Ch. 45 - How is a clumped population distribution...Ch. 45 - Which of the following is associated with...Ch. 45 - Which of the following is associated with multiple...Ch. 45 - Which of the following is associated with the...
Ch. 45 - Species with limited resources usually exhibit...Ch. 45 - The maximum rate of increased characteristic of a...Ch. 45 - The population size of a species capable of being...Ch. 45 - Species that have many offspring at one time are...Ch. 45 - A forest fire is an example of regulation....Ch. 45 - Primates are examples of: density-dependent...Ch. 45 - Which of the following statements does not support...Ch. 45 - Which of the following events would not negatively...Ch. 45 - A country with zero population growth is likely to...Ch. 45 - Which type of country has the greatest proportion...Ch. 45 - Which of the following is not a way that humans...Ch. 45 - The first species to live on new land, such as...Ch. 45 - Which type of mimicry involves multiple species...Ch. 45 - A symbiotic relationship where both of the...Ch. 45 - Which of the following is not a mutualistic...Ch. 45 - The ability of rats to learn how to run a maze is...Ch. 45 - The training of animals usually involves...Ch. 45 - The sacrifice of the life of an individual so that...Ch. 45 - Why are polyandrous mating systems more rare than...Ch. 45 - Describe how a researcher would determine the size...Ch. 45 - The CDC released the following data in its 2013...Ch. 45 - Why is long-term parental care not associated with...Ch. 45 - Describe the difference in evolutionary pressures...Ch. 45 - Describe the rate of population growth that would...Ch. 45 - Describe how the population of a species that...Ch. 45 - Give an example of how density-dependent and...Ch. 45 - Describe the age structures in rapidly growing...Ch. 45 - Since the introduction of the Endangered Species...Ch. 45 - Describe the competitive exclusion principle and...Ch. 45 - Jaguars are a keystone species in the Amazon....Ch. 45 - Describe Pavlov’s dog experiments as an example of...Ch. 45 - Describe the advantage of using an aural or...
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- A population grows whenever the number of ________plus_______ exceeds the number of________plus______ . The growth rate of apopulation increases when the frequency of reproduction_________.arrow_forwardA sudden natural catastrophe resulting in massive die-offs would be categorized as a density-________ limiting factor. Select one: Autonomous Reliant Dependent Independentarrow_forwardFor each organism, create a survivorship curve by plotting the given information in a line graph. Title each graph "Survivorship Curve for [name of organism]." The y-axis should be labeled "Survivorship" and contain low, medium, and high indicators. The x-axis should be labeled "Life Span" and contain young, middle-aged, and old indicators. American toads practice explosive reproduction. During the first warm days in spring, both males and females migrate from forests and converge on ponds. Reproduction is quick, taking only a few days. Females lay hundreds of eggs in jelly-filled sacks along the sides of the pond or stream. As soon as the eggs are laid, males and females abruptly leave the pond. Even before they hatch, the offspring are prone to high rates of predation. Many offspring die before they reach adulthood. Of the offspring that do survive, some will die in adulthood, and some will live their entire natural life span.arrow_forward
- Tumucumaque National Park ecosystem - organism adaptations: Please answer the two bullet points straight to the point like its a presentation slide. Pick one primary producer Pick one consumerarrow_forwardIn logistic growth, large values of r (e.g., >3) can cause the population size to stay greater than K for multiple generations briefly exceed K but then stabilize at K thereafter never increase beyond the initial number fluctuate chaotically gradually approach K and then stabilize at K thereafterarrow_forwardBiologists have chosen a particular species to populate a small island. They have introduced a number of the species that constitutes 25 percent of the population that the island is capable of supporting. If the growth rate of the species is 11 percent, find what percentage of the maximum the particular species population will be on the island in three years.arrow_forward
- You are studying the population dynamics of an algae species that recently invaded a lake. You measured the amount of algae in the lake the time of the invasion and then for six years afterward (shown in green dots below). You also conducted experiments showing there are enough nutrients entering this lake to support a population density of 200 cells per mm- of algae, marked below as a dashed orange line labeled K. Based on your data, you want to predict how large the algae population will be in the future, assuming no major environmental fluctuations. Here, population density can be modeled in the same manner as population size. 1. what would you assume the algae population density will be 20 additional years in the future, assuming no environmental changes occur? __cells/mm^2arrow_forwardYou start a lab colony of Rotifers (small aquatic animals) by adding 5 indviduals to a small tank. One week later the population has grown to 17. Assuming that the population is growing exponentially, how many rotifers can you expect after 7 weeks? Round your answer to the closest full number.arrow_forwardIf the slope on a rank abundance curve is m = 0, the species diversity in the community will be? Group of answer choices equal high more information needed lowarrow_forward
- 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? 10 15 25 50 75arrow_forwardBerger-Parker index. Measures the frequency of the most abundant species, D3(p) = max(p, 1 − p). (See the attached image of a graph to answer the below question, poll 1) Poll 1: Is D3 continuous A. yesB. noarrow_forwardUnder ideal conditions, a population of bacteria can grow to more than 1036 in 24 hours. This is a statement of the populations: a. Density b. Carrying capacity c. Growth rate d. Biotic potentialarrow_forward
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