Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 27, Problem 8RQ
Explain why environmental resistance has not prevented exponential human population growth since prehistoric times; provide examples. Can this continue? Explain why or why not.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
In many rural areas, stray cats are a problem as they may return to being wild feral cats that have not been spayed or neutered can reproduce, which may result in a population of feral cats. One pair of cats can produce 12 kittens in one year, and half of these kittens are female; this increased population would potentially produce 84 kittens in the second year. In 5-years, the population could reach almost 33000 feral cats.
A) What conditions or factors would have to be in place for the population to achieve its biotic potential?
1.) At approximately what year did the human population enter an exponential growth phase?
2.) Prior to that time, what was the approximate carrying capacity of Earth?
3.) State three significant technological developments that have acted to increase the carrying capacity of Earth’s environment since that time.
4.) Provide two examples of density-dependent factors that are contributing to or have the potential to contribute to environmental resistance in human populations.
Draw the general shape of age structure diagrams characteristic of (a) expanding, (b) stable, and (c) shrinking populations. Label all the axes. Explain why you can predict the next several decades of growth by the current age structure of populations.
Chapter 27 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 27.1 - Prob. 1CSCCh. 27.1 - Prob. 1CYLCh. 27.1 - Prob. 1HYEWCh. 27.1 - The Return of the Elephant Seals Female elephant...Ch. 27.1 - Prob. 2CYLCh. 27.1 - Prob. 3CYLCh. 27.2 - Prob. 1CSCCh. 27.2 - Prob. 1CYLCh. 27.2 - Prob. 1TCCh. 27.2 - Prob. 2CYL
Ch. 27.2 - What factors might make these population data...Ch. 27.2 - Prob. 3CYLCh. 27.2 - What benefits does mass emigration give to animals...Ch. 27.3 - Prob. 1CYLCh. 27.3 - Prob. 2CYLCh. 27.4 - describe the three types of spatial distribution...Ch. 27.5 - Prob. 1CSRCh. 27.5 - describe the advances that have allowed...Ch. 27.5 - Prob. 1TCCh. 27.5 - explain why rapid population growth continues...Ch. 27.5 - Prob. 2TCCh. 27.5 - Prob. 3CYLCh. 27.5 - Prob. 3TCCh. 27.5 - Prob. 4CYLCh. 27 - Research a developing country (such as Nigeria,...Ch. 27 - Prob. 1FIBCh. 27 - Prob. 1MCCh. 27 - Prob. 1RQCh. 27 - Prob. 2ACCh. 27 - The type of growth that occurs in a population...Ch. 27 - Prob. 2MCCh. 27 - Prob. 2RQCh. 27 - Prob. 3FIBCh. 27 - Prob. 3MCCh. 27 - Draw, name, and describe the properties of a...Ch. 27 - Prob. 4FIBCh. 27 - Prob. 4MCCh. 27 - Prob. 4RQCh. 27 - Prob. 5FIBCh. 27 - Prob. 5MCCh. 27 - What is logistic population growth? What is K?Ch. 27 - Prob. 6RQCh. 27 - Distinguish between populations showing concave...Ch. 27 - Explain why environmental resistance has not...Ch. 27 - Prob. 9RQCh. 27 - Prob. 10RQ
Knowledge Booster
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
- You study a population of snails recently introduced to a small lake 10 years ago. You know that 7 snails were originally let go in the lake by a cottager. The lake has no snail predators nor any other species occupying the same or a similar ecological niche. You know from your research that, under ideal conditions, the instantaneous rate of increase of this snail species is 0.5. You also think the conditions on the lake were ideal when the snails were introduced. After surveying the food available in the lake, you estimated that there is enough food to support a population of 1696 snails. How many snails do expect to be in the lake now?arrow_forwardDescribe what the ramifications of this population growth will be in your area and what specific technological improvement should be done in your area to ensure the continued survival of humans.arrow_forwardIf the human species were to suffer a population crash, list three species that might move in to occupy part of our ecological niche. List and explain three species that would likely decline as a result.arrow_forward
- Use this graph of the idealized exponential and logistic growth curves to complete the following. a. Label the axes and curves on the graph.b. What does the dotted line represent? c. For each curve, indicate and explain where population growth is the most rapid. d. Which of these curves better represents global human population growth?arrow_forwardEach May, harp seals give birth off the coast of Newfoundland and Labrador. In a hypothetical situation, an initial population of 900 seals gives birth to 390 pups, and during the next 12 months, 60 seals die. Assuming that the population is growing geometrically, what will the harp seal population be in 12 years? A formal solution is requiredarrow_forwardCan you please explain why the answer can/can't be (D)?arrow_forward
- An ecologist studies a population of animals in a small field over several years. He measures the birth rate ( B) and death rate ( D) over that period. The data are shown in the graph. 0.6 0.5 0.4 0.3 0.2 0.1 1 2 3 4 Time (years) + Birth- Death What was the per capita growth rate (dN/dt, number/year/individual) at year 3.5? (Express the answer in two decimal places) Rate (numberlyear/individual)arrow_forwardAn ecologist studies three populations within an ecosystem. Each population has an identical intrinsic growth rate (r max = 0.5). The population sizes and carrying capacities are shown in the graph. 1000 900 800 700 600 500 400 300 200 100 ㅇ A Population 1 Size - Carrying capacity What is the growth rate of Population C? Numberarrow_forwardWhich of the following best predicts the consequences of introducing brown rats ( invasive species) to an island where they did not previously exist? Choose 1 answer: Choose 1 answer: (Choice A) A The rat population size will likely remain small, and as a result the rats will not be able to outcompete other organisms for resources. (Choice B) B Without its typical food sources, the rat population will not be able to become established, and the island ecosystem will remain stable. (Choice C) The rat population will grow rapidly, disrupting the island's community structure by feeding on native plants and animals. (Choice D) D Without any natural predators, the rat population will become established and help increase the species diversity of the island answer explainarrow_forward
- Within a forest and stream Eco system there is a food web that includes grasses rabbits grasshoppers foxes and snakes answer the following questions.arrow_forwardWhich curve on the graph represents a species that produces high numbers of offspring with little paternal care? a) Graph 1 b) Graph 2 c) Graph 3 d) Graph 4arrow_forwardName two reasons that a large national park like Serengeti or Yellowstone might not be enough to effectively conserve a population of a threatened species. What solutions exist to address these reasons?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
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