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8
0
Sara
26/08/2025
Biology
topic 7- ecology
482
•
26 Aug 2025
•
Sara
@saraa.mxv
Ecology, adaptations, interdependence, and competition are crucial concepts in ecology... Show more
This page delves into the organization of ecosystems and the impact of environmental changes on species distribution and ecosystem processes.
Environmental changes can be seasonal, geographic, or human-related, affecting the distribution of species within ecosystems. These changes can impact various factors such as temperature, water availability, and atmospheric gas composition.
Vocabulary: Decomposers are organisms that break down dead organic matter, playing a crucial role in nutrient cycling within ecosystems.
The process of decomposition is influenced by environmental factors. Warm temperatures accelerate decay by providing optimal conditions for enzyme activity. Water availability is crucial for decomposers, but excessive water can lead to anaerobic conditions, slowing down the decomposition process.
Material cycling is a fundamental concept in ecosystem functioning. It involves the movement of materials through both biotic and abiotic components of an ecosystem, including the carbon and water cycles.
Highlight: Food chains illustrate the direction of biomass transfer within an ecosystem, from producers to various levels of consumers.
Sampling methods such as quadrats and transects are used to study the distribution and abundance of species within ecosystems. These techniques provide valuable data for understanding ecosystem structure and biodiversity.
This final page focuses on biodiversity and the effects of human activities on ecosystems, highlighting the importance of conservation efforts.
Definition: Biodiversity refers to the number of organisms, variety of species, and genetic diversity within an area.
Human activities significantly impact biodiversity through various means:
Example: Deforestation is a major cause of habitat destruction, leading to soil erosion, species extinction, flash flooding, and the release of greenhouse gases.
Global warming, caused by increased greenhouse gas emissions, poses a significant threat to biodiversity. Rising temperatures can lead to the extinction of species unable to adapt quickly enough, such as coral reefs.
Conservation efforts are crucial for maintaining biodiversity and ecosystem stability. These include:
Highlight: Maintaining biodiversity is essential for ecosystem stability and resilience in the face of environmental changes.
Human-induced climate change and habitat destruction pose significant challenges to global biodiversity. Understanding these impacts and implementing effective conservation strategies are crucial for preserving the planet's ecological balance.
This page introduces key concepts in ecology adaptations and interdependence gcse. It explores the differences between abiotic and biotic factors in ecosystems, the importance of adaptations, and the dynamics of interdependence and competition.
Abiotic factors are non-living components of an ecosystem, including light intensity, temperature, humidity, soil pH, wind, salinity, and CO₂/O₂ levels. These factors significantly influence the living organisms within an ecosystem.
Biotic factors, on the other hand, are living components of an ecosystem. These include disease, predation, and competition between species. The interplay between biotic factors can lead to population changes and drive evolutionary processes.
Definition: Interdependence refers to the mutual reliance of different species on each other for food, shelter, and other resources within an ecosystem.
Competition for resources such as food, mates, and space promotes evolution and natural selection. This process leads to the development of adaptations, which can be structural, behavioral, or functional.
Example: Extremophiles are organisms adapted to live in extreme environments, demonstrating the remarkable ability of life to thrive in diverse conditions.
Highlight: Adaptations occur through evolution and natural selection, allowing organisms to survive and thrive in changing environments.
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
You can download the app from Google Play Store and Apple App Store.
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
App Store
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
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
Android user
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
iOS user
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
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
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
Android user
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
iOS user
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
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
Sara
@saraa.mxv
Ecology, adaptations, interdependence, and competition are crucial concepts in ecology adaptations and interdependence gcse biology. This summary explores the interplay between biotic and abiotic factors in ecosystems, the importance of adaptations, and the impact of human activities on biodiversity.... Show more
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Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
This page delves into the organization of ecosystems and the impact of environmental changes on species distribution and ecosystem processes.
Environmental changes can be seasonal, geographic, or human-related, affecting the distribution of species within ecosystems. These changes can impact various factors such as temperature, water availability, and atmospheric gas composition.
Vocabulary: Decomposers are organisms that break down dead organic matter, playing a crucial role in nutrient cycling within ecosystems.
The process of decomposition is influenced by environmental factors. Warm temperatures accelerate decay by providing optimal conditions for enzyme activity. Water availability is crucial for decomposers, but excessive water can lead to anaerobic conditions, slowing down the decomposition process.
Material cycling is a fundamental concept in ecosystem functioning. It involves the movement of materials through both biotic and abiotic components of an ecosystem, including the carbon and water cycles.
Highlight: Food chains illustrate the direction of biomass transfer within an ecosystem, from producers to various levels of consumers.
Sampling methods such as quadrats and transects are used to study the distribution and abundance of species within ecosystems. These techniques provide valuable data for understanding ecosystem structure and biodiversity.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
This final page focuses on biodiversity and the effects of human activities on ecosystems, highlighting the importance of conservation efforts.
Definition: Biodiversity refers to the number of organisms, variety of species, and genetic diversity within an area.
Human activities significantly impact biodiversity through various means:
Example: Deforestation is a major cause of habitat destruction, leading to soil erosion, species extinction, flash flooding, and the release of greenhouse gases.
Global warming, caused by increased greenhouse gas emissions, poses a significant threat to biodiversity. Rising temperatures can lead to the extinction of species unable to adapt quickly enough, such as coral reefs.
Conservation efforts are crucial for maintaining biodiversity and ecosystem stability. These include:
Highlight: Maintaining biodiversity is essential for ecosystem stability and resilience in the face of environmental changes.
Human-induced climate change and habitat destruction pose significant challenges to global biodiversity. Understanding these impacts and implementing effective conservation strategies are crucial for preserving the planet's ecological balance.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
This page introduces key concepts in ecology adaptations and interdependence gcse. It explores the differences between abiotic and biotic factors in ecosystems, the importance of adaptations, and the dynamics of interdependence and competition.
Abiotic factors are non-living components of an ecosystem, including light intensity, temperature, humidity, soil pH, wind, salinity, and CO₂/O₂ levels. These factors significantly influence the living organisms within an ecosystem.
Biotic factors, on the other hand, are living components of an ecosystem. These include disease, predation, and competition between species. The interplay between biotic factors can lead to population changes and drive evolutionary processes.
Definition: Interdependence refers to the mutual reliance of different species on each other for food, shelter, and other resources within an ecosystem.
Competition for resources such as food, mates, and space promotes evolution and natural selection. This process leads to the development of adaptations, which can be structural, behavioral, or functional.
Example: Extremophiles are organisms adapted to live in extreme environments, demonstrating the remarkable ability of life to thrive in diverse conditions.
Highlight: Adaptations occur through evolution and natural selection, allowing organisms to survive and thrive in changing environments.
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
You can download the app from Google Play Store and Apple App Store.
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
App Store
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
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
Android user
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
iOS user
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
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
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
Android user
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
iOS user
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
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
