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Ecology and Population Sizes: Competition, Biotic and Abiotic Factors, Adaptations, and Food Chains PDF

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Lauren Male

10/02/2023

Biology

Biology Topic 7 Ecology Part 1: Competition, abiotic and biotic factors, Adaptations and Food Chains

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Biology

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Ecology

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Adaptations, interdependence and competition

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Abiotic factors affecting the abundance & distribution of organisms

Ecology and Population Sizes: Competition, Biotic and Abiotic Factors, Adaptations, and Food Chains PDF

Competition and Interdependence in Ecosystems - A comprehensive exploration of how organisms interact, compete, and adapt within their environments, examining both biotic and abiotic factors that influence ecosystem dynamics.

  • Explores fundamental ecological concepts including habitats, populations, and communities
  • Details how competition in ecosystems and population sizes affects species survival
  • Examines various adaptations that enable organisms to thrive in different environments
  • Explains the importance of food chains and energy transfer in ecosystems
  • Discusses both interspecific competition and intraspecific competition in natural systems
...

10/02/2023

2077

<p><strong>Habitat</strong>: A place where an organism lives. </p> <p><strong>Population</strong>: All the organisms of one species living

View

Page 2: Interdependence and Community Stability

This section explores the intricate relationships between species within ecosystems and the concept of stable communities.

Highlight: Changes in any part of an ecosystem can have far-reaching effects due to the interdependence of species.

Definition: Stable communities are ecosystems where species and environmental factors are balanced, maintaining relatively constant population sizes.

Example: Species depend on each other for various functions including food, shelter, pollination, and seed dispersal.

<p><strong>Habitat</strong>: A place where an organism lives. </p> <p><strong>Population</strong>: All the organisms of one species living

View

Page 3: Abiotic Factors in Ecosystems

This page details the various non-living factors that influence ecosystem function and organism survival.

Vocabulary: Key abiotic factors include:

  • Moisture level
  • Light intensity
  • Temperature
  • Carbon dioxide levels
  • Wind intensity and direction
  • Oxygen levels
  • Soil pH and mineral content

Highlight: Different organisms have evolved specific adaptations to thrive in varying abiotic conditions.

<p><strong>Habitat</strong>: A place where an organism lives. </p> <p><strong>Population</strong>: All the organisms of one species living

View

Page 4: Impact of Abiotic Changes

This section examines how changes in non-living environmental factors affect population dynamics within ecosystems.

Example: A decrease in light intensity, temperature, or CO₂ levels can reduce photosynthesis rates, affecting plant growth and population sizes.

Highlight: Changes in one population can cascade through the ecosystem, affecting dependent species.

<p><strong>Habitat</strong>: A place where an organism lives. </p> <p><strong>Population</strong>: All the organisms of one species living

View

Page 5: Biotic Factors and Their Effects

This page explores how living factors influence ecosystem dynamics and population sizes.

Example: The competition between red and grey squirrels demonstrates how one species can outcompete another when they share the same habitat and food sources.

Vocabulary: Key biotic factors include:

  • Predator presence
  • Competition
  • Pathogens
  • Food availability
<p><strong>Habitat</strong>: A place where an organism lives. </p> <p><strong>Population</strong>: All the organisms of one species living

View

Page 6: Functional Adaptations

This section discusses how organisms' internal processes adapt to environmental conditions.

Definition: Functional adaptations are internal processes that help organisms survive, related to reproduction and metabolism.

Example: Desert animals conserve water by producing minimal sweat and concentrated urine, while brown bears hibernate to conserve energy during food-scarce periods.

<p><strong>Habitat</strong>: A place where an organism lives. </p> <p><strong>Population</strong>: All the organisms of one species living

View

Page 7: Structural and Behavioral Adaptations

This page examines physical and behavioral characteristics that help organisms survive in their environments.

Vocabulary:

  • Structural adaptations: Physical features that aid survival
  • Behavioral adaptations: Actions that help organisms survive

Example: Arctic foxes have white fur for camouflage, while animals in cold climates have blubber and low surface area to volume ratios for heat retention.

<p><strong>Habitat</strong>: A place where an organism lives. </p> <p><strong>Population</strong>: All the organisms of one species living

View

Page 8: Food Chains and Energy Transfer

This section explains how energy moves through ecosystems via food chains.

Definition: Biomass is the mass of living material in an organism, representing stored energy.

Highlight: Food chains always begin with producers usuallygreenplantsoralgaeusually green plants or algae that create their own food through photosynthesis.

Example: Energy transfers through the ecosystem as organisms consume other organisms, moving from producers to primary consumers, then to secondary and tertiary consumers.

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Subjects

Biology

Ecology

Adaptations, interdependence and competition

Abiotic factors affecting the abundance & distribution of organisms

 

Biology

•

2,077

•

10 Feb 2023

•

8 pages

Ecology and Population Sizes: Competition, Biotic and Abiotic Factors, Adaptations, and Food Chains PDF

L

Lauren Male

@laurenmale

Competition and Interdependence in Ecosystems - A comprehensive exploration of how organisms interact, compete, and adapt within their environments, examining both biotic and abiotic factors that influence ecosystem dynamics.

  • Explores fundamental ecological concepts including habitats, populations, and communities
  • Details how ... Show more

<p><strong>Habitat</strong>: A place where an organism lives. </p> <p><strong>Population</strong>: All the organisms of one species living

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Page 2: Interdependence and Community Stability

This section explores the intricate relationships between species within ecosystems and the concept of stable communities.

Highlight: Changes in any part of an ecosystem can have far-reaching effects due to the interdependence of species.

Definition: Stable communities are ecosystems where species and environmental factors are balanced, maintaining relatively constant population sizes.

Example: Species depend on each other for various functions including food, shelter, pollination, and seed dispersal.

<p><strong>Habitat</strong>: A place where an organism lives. </p> <p><strong>Population</strong>: All the organisms of one species living

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Page 3: Abiotic Factors in Ecosystems

This page details the various non-living factors that influence ecosystem function and organism survival.

Vocabulary: Key abiotic factors include:

  • Moisture level
  • Light intensity
  • Temperature
  • Carbon dioxide levels
  • Wind intensity and direction
  • Oxygen levels
  • Soil pH and mineral content

Highlight: Different organisms have evolved specific adaptations to thrive in varying abiotic conditions.

<p><strong>Habitat</strong>: A place where an organism lives. </p> <p><strong>Population</strong>: All the organisms of one species living

Sign up to see the contentIt's free!

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Join milions of students

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Page 4: Impact of Abiotic Changes

This section examines how changes in non-living environmental factors affect population dynamics within ecosystems.

Example: A decrease in light intensity, temperature, or CO₂ levels can reduce photosynthesis rates, affecting plant growth and population sizes.

Highlight: Changes in one population can cascade through the ecosystem, affecting dependent species.

<p><strong>Habitat</strong>: A place where an organism lives. </p> <p><strong>Population</strong>: All the organisms of one species living

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Join milions of students

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Page 5: Biotic Factors and Their Effects

This page explores how living factors influence ecosystem dynamics and population sizes.

Example: The competition between red and grey squirrels demonstrates how one species can outcompete another when they share the same habitat and food sources.

Vocabulary: Key biotic factors include:

  • Predator presence
  • Competition
  • Pathogens
  • Food availability
<p><strong>Habitat</strong>: A place where an organism lives. </p> <p><strong>Population</strong>: All the organisms of one species living

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

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Page 6: Functional Adaptations

This section discusses how organisms' internal processes adapt to environmental conditions.

Definition: Functional adaptations are internal processes that help organisms survive, related to reproduction and metabolism.

Example: Desert animals conserve water by producing minimal sweat and concentrated urine, while brown bears hibernate to conserve energy during food-scarce periods.

<p><strong>Habitat</strong>: A place where an organism lives. </p> <p><strong>Population</strong>: All the organisms of one species living

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Page 7: Structural and Behavioral Adaptations

This page examines physical and behavioral characteristics that help organisms survive in their environments.

Vocabulary:

  • Structural adaptations: Physical features that aid survival
  • Behavioral adaptations: Actions that help organisms survive

Example: Arctic foxes have white fur for camouflage, while animals in cold climates have blubber and low surface area to volume ratios for heat retention.

<p><strong>Habitat</strong>: A place where an organism lives. </p> <p><strong>Population</strong>: All the organisms of one species living

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Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Page 8: Food Chains and Energy Transfer

This section explains how energy moves through ecosystems via food chains.

Definition: Biomass is the mass of living material in an organism, representing stored energy.

Highlight: Food chains always begin with producers usuallygreenplantsoralgaeusually green plants or algae that create their own food through photosynthesis.

Example: Energy transfers through the ecosystem as organisms consume other organisms, moving from producers to primary consumers, then to secondary and tertiary consumers.

<p><strong>Habitat</strong>: A place where an organism lives. </p> <p><strong>Population</strong>: All the organisms of one species living

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Page 1: Fundamental Ecological Concepts

This page introduces core ecological terminology and concepts, establishing the foundation for understanding ecosystem dynamics. The text explains how organisms compete for essential resources within their environments.

Definition: An ecosystem is the interaction of a community of living organisms with the non-living parts of their environment.

Vocabulary:

  • Habitat: The specific place where an organism lives
  • Population: All organisms of one species in a habitat
  • Community: Different species populations living in a habitat
  • Abiotic factors: Non-living environmental elements
  • Biotic factors: Living environmental elements

Example: Plants compete for light, space, water, and minerals, while animals compete for territory, food, water, and mates.

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Stefan S

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This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

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Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

Best app on earth! no words because it’s too good

Thomas R

iOS user

Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.

Basil

Android user

This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.

David K

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The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.

Rohan U

Android user

I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.

Xander S

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

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