Maths
Biology
Chemistry
English Lang.
History
Responding to change (a2 only)
Energy transfers (a2 only)
Infection and response
Homeostasis and response
Cell biology
Biological molecules
Organisation
Substance exchange
The control of gene expression (a2 only)
Bioenergetics
Genetic information & variation
Inheritance, variation and evolution
Genetics & ecosystems (a2 only)
Ecology
Cells
Show all topics
Britain & the wider world: 1745 -1901
2d religious conflict and the church in england, c1529-c1570
Medieval period: 1066 -1509
1l the quest for political stability: germany, 1871-1991
1f industrialisation and the people: britain, c1783-1885
The cold war
1c the tudors: england, 1485-1603
Inter-war germany
2m wars and welfare: britain in transition, 1906-1957
2j america: a nation divided, c1845-1877
World war two & the holocaust
2n revolution and dictatorship: russia, 1917-1953
2s the making of modern britain, 1951-2007
World war one
Britain: 1509 -1745
Show all topics
Biology
2 Oct 2025
1,178
2 pages
mel @mel.jane84
The water cycle and biodiversity are crucial topics in GCSE Biology Paper 2, covering essential ecological processes... Show more
Page 2 Population Dynamics and Environmental Impact
This page focuses on ecological relationships and environmental changes. The predator-prey relationship demonstrates cyclical population patterns, where increases in prey populations lead to subsequent predator population growth, followed by inevitable declines.
Definition A stable community shows regular oscillations in predator and prey populations, maintaining a natural balance.
The text concludes with an extensive discussion of global warming impacts
Highlight Global warming effects include habitat loss, particularly in Arctic regions, rising sea levels threatening coastal cities, and species migration patterns disruption.
Example Cities like New York and Amsterdam face increasing risks from rising sea levels caused by melting polar ice caps.
Quote "Global warming may cause animals such as birds and insects to migrate towards the poles to find habitats with suitable temperatures."
Page 1 Water Cycle, Biodiversity, and Classification Systems
The page begins with a detailed explanation of the water cycle gcse diagram components. Water moves through the environment via evaporation, powered by solar energy, and transpiration from plants. This vapor rises, cools, and undergoes condensation to form clouds, leading to precipitation that provides essential water for life.
Definition Transpiration is the process of water movement through plants and evaporation from plant surfaces.
The text then explores methods of maintaining biodiversity bbc bitesize concepts.
Example Protection and regeneration of rare habitats example includes establishing breeding programs for endangered species and reintroducing field margins.
Highlight Economic challenges often oppose biodiversity conservation, as farmers may face reduced profits when implementing environmental protection measures.
The classification section compares two major systems
Vocabulary The binomial system uses genus and species names, while the three-domain system categorizes organisms as Archaea, Prokaryotic, or Eukaryotic based on cellular structure.
The page concludes with a detailed methodology for population sampling using quadrats and random number selection.
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.
32
Smart Tools NEW
Transform this note into: ✓ 50+ Practice Questions ✓ Interactive Flashcards ✓ Full Mock Exam ✓ Essay Outlines
Explore the intricate relationships within ecosystems, focusing on the distribution of organisms, biotic and abiotic factors, and effective sampling methods. This summary covers key concepts such as habitats, populations, and ecological communities, providing essential insights for biology students. Ideal for exam preparation and understanding ecosystem interactions.
BiologyExplore the practical method for measuring reaction time in a controlled experiment. This guide details the step-by-step procedure, identifies independent and dependent variables, and discusses control measures. Ideal for GCSE Biology students, it also suggests variations to investigate factors affecting reaction time, such as practice and the influence of caffeine.
BiologyExplore essential methods for investigating ecosystems, including quadrat sampling, transects, and capture-recapture techniques. This summary covers key concepts such as organism distribution, biodiversity, and the impact of environmental factors on population sizes. Ideal for GCSE Biology students looking to enhance their understanding of ecological research methods.
BiologyExplore essential techniques for GCSE Biology practicals, including population measurement using quadrats and transects, and investigating reaction time. Understand key concepts like population density, abiotic and biotic factors, and the scientific method. Ideal for exam preparation and practical assessments.
BiologyExplore the fundamental concepts of ecosystems, including food chains, food webs, competition, and ecological niches. This summary covers key terms such as producers, consumers, and the dynamics of species interactions within their habitats. Ideal for students studying ecology and biodiversity.
BiologyExplore the intricate relationships within ecosystems, including key concepts such as biodiversity, food chains, and the role of indicator species. This summary covers essential definitions and diagrams illustrating energy flow in food webs, making it a valuable resource for National 5 Biology students.
BiologyApp 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
Biology
2 Oct 2025
1,178
2 pages
mel @mel.jane84
The water cycle and biodiversity are crucial topics in GCSE Biology Paper 2, covering essential ecological processes and environmental conservation methods. This comprehensive guide explores water circulation, biodiversity maintenance,... Show more
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Page 2 Population Dynamics and Environmental Impact
This page focuses on ecological relationships and environmental changes. The predator-prey relationship demonstrates cyclical population patterns, where increases in prey populations lead to subsequent predator population growth, followed by inevitable declines.
Definition A stable community shows regular oscillations in predator and prey populations, maintaining a natural balance.
The text concludes with an extensive discussion of global warming impacts
Highlight Global warming effects include habitat loss, particularly in Arctic regions, rising sea levels threatening coastal cities, and species migration patterns disruption.
Example Cities like New York and Amsterdam face increasing risks from rising sea levels caused by melting polar ice caps.
Quote "Global warming may cause animals such as birds and insects to migrate towards the poles to find habitats with suitable temperatures."
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Page 1 Water Cycle, Biodiversity, and Classification Systems
The page begins with a detailed explanation of the water cycle gcse diagram components. Water moves through the environment via evaporation, powered by solar energy, and transpiration from plants. This vapor rises, cools, and undergoes condensation to form clouds, leading to precipitation that provides essential water for life.
Definition Transpiration is the process of water movement through plants and evaporation from plant surfaces.
The text then explores methods of maintaining biodiversity bbc bitesize concepts.
Example Protection and regeneration of rare habitats example includes establishing breeding programs for endangered species and reintroducing field margins.
Highlight Economic challenges often oppose biodiversity conservation, as farmers may face reduced profits when implementing environmental protection measures.
The classification section compares two major systems
Vocabulary The binomial system uses genus and species names, while the three-domain system categorizes organisms as Archaea, Prokaryotic, or Eukaryotic based on cellular structure.
The page concludes with a detailed methodology for population sampling using quadrats and random number selection.
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.
32
Smart Tools NEW
Transform this note into: ✓ 50+ Practice Questions ✓ Interactive Flashcards ✓ Full Mock Exam ✓ Essay Outlines
Explore the intricate relationships within ecosystems, focusing on the distribution of organisms, biotic and abiotic factors, and effective sampling methods. This summary covers key concepts such as habitats, populations, and ecological communities, providing essential insights for biology students. Ideal for exam preparation and understanding ecosystem interactions.
BiologyExplore the practical method for measuring reaction time in a controlled experiment. This guide details the step-by-step procedure, identifies independent and dependent variables, and discusses control measures. Ideal for GCSE Biology students, it also suggests variations to investigate factors affecting reaction time, such as practice and the influence of caffeine.
BiologyExplore essential methods for investigating ecosystems, including quadrat sampling, transects, and capture-recapture techniques. This summary covers key concepts such as organism distribution, biodiversity, and the impact of environmental factors on population sizes. Ideal for GCSE Biology students looking to enhance their understanding of ecological research methods.
BiologyExplore essential techniques for GCSE Biology practicals, including population measurement using quadrats and transects, and investigating reaction time. Understand key concepts like population density, abiotic and biotic factors, and the scientific method. Ideal for exam preparation and practical assessments.
BiologyExplore the fundamental concepts of ecosystems, including food chains, food webs, competition, and ecological niches. This summary covers key terms such as producers, consumers, and the dynamics of species interactions within their habitats. Ideal for students studying ecology and biodiversity.
BiologyExplore the intricate relationships within ecosystems, including key concepts such as biodiversity, food chains, and the role of indicator species. This summary covers essential definitions and diagrams illustrating energy flow in food webs, making it a valuable resource for National 5 Biology students.
BiologyApp 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
