/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 7 The study of population ecology ... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 35: Problem 7

The study of population ecology focuses on ___. a. The number of individuals of one species in an area and how and why that number changes over time. b. The processes driving interactions within and among different species within an area. c. The adaptations that enable individuals to live in specific habitats. d. Plants and animals living in an enclosed area

Short Answer

Expert verified
Option a is correct: studying the number of individuals of one species and their population changes over time.

Step by step solution

01

- Understand Population Ecology

Population ecology is a branch of biology that studies the number of individuals in a species within a given area and examines how and why the population size changes over time.
02

- Analyze Each Option

a. This option defines studying the number of individuals of one species in an area and understanding the changes in their population size over time.b. This option focuses on the interactions among different species.c. This option looks into adaptations for living in specific habitats.d. This option mentions plants and animals in an enclosed area.
03

- Eliminate Irrelevant Options

Option b focuses on interactions within and among species rather than population size.Option c emphasizes individual adaptations for habitats, not population change.Option d deals with enclosed areas, not population size changes.
04

- Select the Best Option

Option a is the most accurate as it focuses on the number of individuals of a species in an area and how their population changes over time.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Species Population Size
Species population size is a key concept in population ecology. It refers to the number of individuals of a given species in a specified area. This number is crucial for understanding the health and viability of the species. A large population size might indicate a healthy, thriving species, while a small population size could signal potential risks of extinction or ecological imbalance. Several factors can affect population size, including food availability, predation rates, disease, and environmental conditions. It鈥檚 important to monitor these factors to ensure a stable and sustainable population.
Population Dynamics
Population dynamics is the study of how and why species populations change over time. These changes can be influenced by a variety of factors:
  • Birth rates: Higher birth rates can lead to population growth.
  • Death rates: Increased death rates can cause population decline.
  • Immigration: The arrival of new individuals into a population.
  • Emigration: The departure of individuals from a population.
Understanding these dynamics helps ecologists predict future population trends and develop strategies for conservation and management. The equations and models used in population dynamics can account for these factors and help in creating simulations to predict population trends.
Changes in Population Over Time
Changes in population over time are a central focus of population ecology. Populations can experience growth, stability, or decline, depending on multiple factors. For instance:
  • Environmental changes: Events like natural disasters or climate change can drastically affect population sizes.
  • Human activities: Overhunting, habitat destruction, and pollution can lead to population decline.
  • Predation and competition: The interactions with other species for resources can influence population numbers.
These changes are often studied using models like the logistic growth model, which describes how populations grow rapidly at first and then slow as they approach the carrying capacity of their environment. By analyzing these trends, ecologists can better understand and predict the long-term viability of species populations.

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

In a temperate grassland system area of North America, vegetation has been destroyed by fire. What will happen to the net primary productivity and the local ecosystem when rains return in the next season? a. The grasses will grow back, but the herbivores that lived there will not return, as they would have found new land to live on. Therefore, the net primary productivity would decrease. b. The grasses will not grow back, therefore the herbivores that lived there will not return. Thus, the net primary productivity would decrease. c. The grasses will grow back and the herbivores that lived there will return. The net primary productivity should also be similar to the previous season. d. The grasses will grow back and the herbivores that lived there will return. The net primary productivity would be less than the previous season.

Why is it essential for organisms to maintain a constant body temperature? Describe adaptations that help the organisms cope with changes in environmental temperature. a. The rate of metabolic processes increases at very high or low temperatures. So, organisms have to maintain a constant body temperature. This can be achieved only by migration to avoid seasonal temperature changes. b. Enzymes that carry out metabolic processes are denatured at very high temperatures. So, organisms have to maintain a constant body temperature. This can be achieved by hibernation, aestivation, or migration. c. The rate of metabolic processes increases at very high or low temperatures. So, organisms have to maintain a constant body temperature. This can be achieved by hibernation, aestivation, or migration. d. Enzymes that carry out metabolic processes are denatured at very high temperatures. So, organisms have to maintain a constant body temperature. This can be achieved only by migration to avoid seasonal temperature changes.

As global temperatures change, many flowering plants are flowering earlier. What change would most likely occur if the insect pollinators are not around at the same time? a. Insects will be deprived of their nectar, leading to decrease in numbers; but flowering plants will not be affected, as other animals will pollinate them. b. Flowering plants will not be pollinated resulting in their less population; but insects will not be affected, as insects will feed on other organisms. c. Neither plants nor pollinators will be affected, as new or different species of insects are going to pollinate the flowering plants. d. Both plant and pollinator numbers would decrease, as insects will be deprived of nectar and plants will not be pollinated.

Is it possible to reverse global warming? What measures may help in reducing global climate change? a. It is possible to reverse global warming by reducing the usage of fossil fuels, using alternative fuels, using alternatives to CFC鈥檚 and using natural sources of energy. b. It is not possible to reverse global warming, as major climate changes have already been occurred and settled in the environment. Reducing fossil fuel usage, using natural sources of energy and alternative fuels may slow down global climate change. c. It is not possible to reverse global warming, as we are already witnessing changes in the environment, plants and animal behavior. Reducing fossil fuel usage and using natural sources of energy may slow down global climate change. d. It is possible to reverse global warming by working on new technologies that will help in preventing temperature changes worldwide. Using wind power and high efficiency natural gas generation will help in achieving this goal.

The amount of sunlight and rainfall affects the growing season of plants in different biomes Which of the following biomes is characterized by short growing seasons? a. savanna b. temperate grasslands c. arctic tundra d. tropical wet forest
See all solutions

Recommended explanations on Biology Textbooks

Substance Exchange

Read Explanation

Biological Organisms

Read Explanation

Ecosystems

Read Explanation

Biology Experiments

Read Explanation

Bioenergetics

Read Explanation

Ecological Levels

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.