ecology biology homework

How does a mutation in the gene encoding RNA polymerase impact gene expression?

Explanation RNA polymerase is an enzyme responsible for synthesizing RNA molecules from DNA templates during the process of transcription. RNA polymerase works in conjunction with transcription factors and other regulatory proteins to recognize and bind to specific DNA sequences, initiating the transcription of genes. Mutations in the gene encoding RNA polymerase can have significant effects […]

What is the Impact of Promoter Sequence Mutations on Gene Expression and Cellular Function

Explanation Promoters are regions of DNA that play a critical role in initiating the process of gene expression. Mutations in the promoter sequence can disrupt the normal binding of transcription factors and RNA polymerase to the DNA, which can ultimately impact gene expression and cellular function. When a mutation occurs in the promoter sequence, it […]

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44: Ecology and the Biosphere

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Humans are a part of the ecological landscape, and human health is one important part of human interaction with our physical and living environment.

• 44.0: Prelude to Ecology and the Biosphere Why study ecology? Perhaps you are interested in learning about the natural world and how living things have adapted to the physical conditions of their environment. Or, perhaps you’re a future physician seeking to understand the connection between human health and ecology.
• 44.1: The Scope of Ecology Ecology is the study of the interactions of living organisms with their environment. One core goal of ecology is to understand the distribution and abundance of living things in the physical environment. Attainment of this goal requires the integration of scientific disciplines inside and outside of biology, such as biochemistry, physiology, evolution, biodiversity, molecular biology, geology, and climatology.
• 44.2: Biogeography Many forces influence the communities of living organisms present in different parts of the biosphere (all of the parts of Earth inhabited by life). The biosphere extends into the atmosphere (several kilometers above Earth) and into the depths of the oceans. Despite its apparent vastness to an individual human, the biosphere occupies only a minute space when compared to the known universe. Many abiotic forces influence where life can exist and the types of organisms found in the biosphere.
• 44.3: Terrestrial Biomes The Earth’s biomes are categorized into two major groups: terrestrial and aquatic. Terrestrial biomes are based on land, while aquatic biomes include both ocean and freshwater biomes. The eight major terrestrial biomes on Earth are each distinguished by characteristic temperatures and amount of precipitation. Comparing the annual totals of precipitation and fluctuations in precipitation from one biome to another provides clues as to the importance of abiotic factors in biome distribution.
• 44.4: Aquatic Biomes Like terrestrial biomes, aquatic biomes are influenced by a series of abiotic factors. The aquatic medium—water— has different physical and chemical properties than air, however. Even if the water in a pond or other body of water is perfectly clear (there are no suspended particles), water, on its own, absorbs light. As one descends into a deep body of water, there will eventually be a depth which the sunlight cannot reach.
• 44.5: Climate and the Effects of Global Climate Change All biomes are universally affected by global conditions, such as climate, that ultimately shape each biome’s environment. Scientists who study climate have noted a series of marked changes that have gradually become increasingly evident during the last sixty years. Global climate change is the term used to describe altered global weather patterns, including a worldwide increase in temperature, due largely to rising levels of atmospheric carbon dioxide.
• 44.E: Ecology and the Biosphere (Exercises)

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College of Biological Sciences

Department of Evolution and Ecology

The Department of Evolution and Ecology is a dynamic and collaborative community of faculty, students, post-doctoral researchers, and staff. Our mission centers around unraveling the intricate tapestry of evolution and ecology across diverse biological scales. From the evolution of genes and genomes to the diversification of species over time, we explore the fascinating interplay between life forms and their environments. Our research excellence spans these levels, delving into the structure, function, and biogeography of ecological communities. While our faculty members are committed to advancing scientific knowledge, they equally prioritize nurturing the next generation of scientists through quality teaching and mentorship. 

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Bodega Marine Lab

The Bodega Marine Laboratory, a leading research and education facility, serves society by providing science that informs solutions to complex environmental challenges in coastal ecosystems.

Center for Population Biology

The Center for Population Biology advances understanding of the fundamental ecological and evolutionary processes that control the origins and maintenance of biological diversity, at levels ranging from molecules to ecosystems.

Coastal and Marine Sciences Institute

The Coastal and Marine Sciences Institute, located on the UC Davis campus, conducts collaborative, cross-disciplinary research to address pressing challenges in coastal ocean sustainability.

Population Ecology Homework

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This document (both printable and digital versions included) starts as homework questions for a unit on population ecology, but ends up being a completed study guide for the unit test. As I teach my unit on "Population Ecology", I assign a portion of these questions for homework each night. The completed homework assignments provide a thorough study guide for the unit test. You can also use a few questions during class each day to check for student understanding of the concepts being taught.

Choose to use the traditional printable version, or one of the paperless, digital Google Apps versions. Both Google Slides and Google Forms versions are included. The student handouts can be printed or used in the paperless digital format in your Google Drive, Google Classroom, Microsoft OneDrive, or similar. This resource is perfect for traditional classroom settings, 1:1 schools, or for distance learning.

What is included in your download folder?

• Printable and Editable Homework Assignments (8 student pages with 72 total questions)
• Digital paperless version for use in Google Drive, Google Classroom, and/or Microsoft OneDrive
• Google Slides Version (not editable)
• Google Forms Version (editable)
• 5 Page Teacher Guide and Answer Key

This worksheet of homework questions and problems was written to go along with my Powerpoint on this same topic: Population Ecology PowerPoint and Notes. Click this link to view the PowerPoint.

Topics covered in this lesson are:

• Characteristics of Populations: Definition of population, population size, geographic distribution, density, dispersion, growth rate, and age structure.
• Types of Dispersion: Clumped, even, and random, definitions and examples are given.
• Population Dynamics: Birth rate, death rate, life expectancy, age structure.
• Patterns of mortality: Survivorship Curves, the three types are defined and explained, examples given.
• Life Histories: Big-bang reproduction and repeated reproduction
• Population Growth: Growth rate, factors that determine the size of a population, migration, density, exponential growth, carrying capacity, limits to population growth, graphs of different types of population growth, logistic growth, assumptions of the exponential model and the logistic model.
• Carrying capacity and Logistic growth.
• Limits to Growth: Limiting factors, examples of limiting factors, density-dependent factors, competition, predation, parasitism, disease, territoriality, density independent factors.
• Human Population Growth: The history of human population growth, current human population growth, demographic transition, age-structure diagrams.

All answers are included in the very detailed 5 page teacher guide that is included with this product.

The questions are of varying difficulty levels. Question types include compare and contrast, fill in the blank, short answer, multiple choice, calculations, and true/false. Some of the questions are basic and concrete in nature, but most of the questions involve critical thinking and problem solving skills.

Related Products Include:

Introduction to Ecology PowerPoint with Notes for Teacher and Student

Population Ecology PowerPoint with Notes for Teacher and Student

Ecology Chat 2: Population Ecology

Population Ecology Task Cards

Community Ecology PowerPoint with Notes for Teacher and Student

Ecosystems and the Biosphere Part 1: Energy Flow and the Recycling of Matter PowerPoint with Notes for Teacher and Student

Ecosystems and the Biosphere Part 2: Biomes of the World PowerPoint and Notes

Human Impact on the Environment PowerPoint and Notes

FREE Set of Six Ecology Crossword Puzzles

FREE! Backyard Ecology: An Ecological Assessment of Your Back Yard

Population Ecology Quiz

Population Ecology Unit Test

Population Ecology Review PowerPoint Q/A

Population Ecology Lab: The Wild Bean Population

Ecology Activity: Modeling Population Growth

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