GCSE Biology Revision "Food Chains and Predator-Prey Cycles"

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In this video, we look at how food chains represent the flow of biomass through organisms. We then explore predator-prey cycles.
This video is based on the AQA spec. If you are following a different exam board then you should check your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks.
Image credits:
Predator prey "commons.wikimedia.org/wiki/Fi...
By Line Sabroe from Denmark (Predator becomes prey) [CC BY 2.0 (creativecommons.org/licenses/...)], via Wikimedia Commons"
Grass By Lupus in Saxonia - Own work, CC BY-SA 4.0, commons.wikimedia.org/w/index...
Rabbit By Greg Goebel from Loveland CO, USA - Ybbun_4b, CC BY-SA 2.0, commons.wikimedia.org/w/index...
Fox By I, Malene, CC BY 2.5, commons.wikimedia.org/w/index...
Oak Tree "commons.wikimedia.org/wiki/Fi...
Msact at English Wikipedia [GFDL (www.gnu.org/copyleft/fdl.html) or CC BY-SA 3.0 (creativecommons.org/licenses/...)], from Wikimedia Commons"
Caterpillar "commons.wikimedia.org/wiki/Fi...
By Greg Dwyer [CC BY-SA 2.5 (creativecommons.org/licenses/...)], from Wikimedia Commons"
Blackbird By © Francis C. Franklin / CC-BY-SA-3.0, CC BY-SA 3.0, commons.wikimedia.org/w/index...
Deep sea vent By NOAA - oceanexplorer.noaa.gov/explora..., Public Domain, commons.wikimedia.org/w/index...
Sparrow By Fir0002 - Own work, GFDL 1.2, commons.wikimedia.org/w/index...
Sparrowhawk By Meneer Zjeroen - www.flickr.com/photos/nuskyn/..., CC BY 2.0, commons.wikimedia.org/w/index...
Music credit:
Deliberate Thought by Kevin MacLeod is licensed under a Creative Commons Attribution licence (creativecommons.org/licenses/...)
Source: incompetech.com/music/royalty-...
Artist: incompetech.com/

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Sir, In this new GCSE 9-1 I see alot of questions saying "How can this experiment be improved?"(and other practical questions)
Would you consider making a video addressing questions on practicals in general?
Thanks! :D

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Sheena1234ization he normally addresses this on his practical videos, like what is bad about it and what can be improved

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Yes this is for AQA.

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How would u revise effectively for detailed science
I find le chateliers principle the hardest

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anyone know the problems of food webs and food chain?pls

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In the morning of the exam. Only revision ive done TwT

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3:44 all I could think about was the guy who released 1.4 million frogs

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These are for AQA. There will be a lot of overlap but you should check the spec.

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Hi. Almost all of the videos for 9-1 also apply to Edexcel as well but you should check your specification just to make sure.

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