GCSE Biology - Pyramids of Biomass #87
This video covers:
- The idea that biomass is just the mass of living organisms
- Pyramids of biomass show the amount of biomass at each trophic level of a food chain
- Why the amount of biomass decreases as you go up the food chain
- How to calculate the efficiency of biomass transfer between levels in a food chain
Exam board specific info:
AQA - Separate/triple science only
IGCSE Edexcel - Everything is relevant to your course! But you also need to know about pyramids of number and energy, which are very similar.
Edexcel - Separate/triple science only
OCR 21st Century - Separate/triple science only
OCR Gateway - Separate/triple science only
Maths Playlist:
• GCSE Maths (9-1)
GCSE Chemistry playlist:
• GCSE Chemistry - Atoms...
GCSE Biology Playlist:
• Video
GCSE Physics Playlist:
• Video
Пікірлер: 97
I really can't begin to express my gratitude to you. I feel like I owe you. I had ten days to revise for a biology GCSE equivalency test which is an entry requirement for my university and I spent the whole 10 days binge watching your videos and I passed with 83%. This channel was literally my only resource and you've changed the course of my life. The words thank you seem too small. But thank you.
@Cognitoedu
4 жыл бұрын
Really a pleasure to read this! Well done on such good results, and thanks for letting us know!
@bolaf9
3 жыл бұрын
This gives me hope as I’m going to sit mine in November. Who did you take your test with if I may ask?
@michaelroberts4303
3 жыл бұрын
@@bolaf9 It was this one www.equivalencytesting.com/science-biology/ and it wasn't too difficult so don't stress! Everything covered in these tutorials was in the exam. Good luck!
@bolaf9
3 жыл бұрын
Michael Roberts thank you so much. That’s the same one I’m doing. I’m just gonna revise everything on the syllabus
Man, these videos are helping me understand Triple biology a lot easier now. Thanks so much, much man! Like, idk where I'd be with my studying for my GCSE's if it weren't for these videos.
I usually never comment on youtube videos, but I have to express my gratitude to you. I have just covered most of the GCSE biology topics within a week. Thank you so much for your free resources.
If you’d like to practise what's covered in this video, check out the lesson on the Cognito platform: cognitoedu.org/coursesubtopic/b2-gcse-aqa-h-t_10.06 - it's totally free, and has been built to make learning and revision as easy as possible. The main features are: - Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown. - Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on. - Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like. - A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts. - A comprehensive bank of past exam papers, organised both by year, and also by topic. Amadeus & Tom
biology gang! who else is doing this for biology?
@OliviaWestmorland
4 жыл бұрын
I'm doing it for English language
@billynicholson6572
4 жыл бұрын
na this really helpful for my economics class
@plateoffrogs4709
4 жыл бұрын
nope! anyone else using this for business in politics?
@deathbysunset1318
3 жыл бұрын
Rosette Golda more like maths for me
@zainaeltawil1646
3 жыл бұрын
It’s actually true biology for me
I hope you continue to add more videos (beyond GCSE coverage and covers all Biology) :) You got the perfect length, pacing and content of your videos that students can absorb. I hope you also add some practice questions as it enhances stickiness of the learnings as well as some sub-playlists (e.g., DNA, Macromolecules, etc) Thankyou very much for wonderful free content!
I see that a lot of people are thanking you because they need to take a test or something. I'm watching this for school and I need to write a paragraph about this. Thanks for explaining it in a simple way I'm watching this while I'm about to write it.
I’m honestly thanking God that my teacher told me to watch your videos- I pray I’ll be uploading my great results here in a couple of weeks.
@Cognitoedu
3 жыл бұрын
Thanks melanin, we hope to see them 😊
I finally understood this, thank you so much.
Thank you so much for these free sources! It has greatly helped me revision biology. You explanations are very easy to understand, wonderful presentations, just the right pace! I hope your channel boom sooner and get all the sponsorship you need! Again, thank you.
Thanks for these amazing videos. I managed to do all the biology revision in under two weeks. Thanks a lot
@Vatsal1285
4 жыл бұрын
Alisha Devi same mate
these vids are really helpful.
Thank you so much sir. You made my IGCSE amazing!
@Cognitoedu
3 жыл бұрын
Ah thanks Satoyoshi! Glad we could help 👍
Thank you a million!!💗
Thanks sir for this amazing video ...somewhat helpful 😊😊 love from India sir🙏🙏
thanks so much because i only had 3 days to revise for a test but because of you i passed with 93 percent thank alot and i really love your vids
do these videos cover all of the specfication or only most of it? just asking because I'm wondering whether this is all the content necessary for 9-1
@Cognitoedu
4 жыл бұрын
Hey they cover almost all of it - but there are a few items, such as the practicals, that we don’t cover. To be 100% sure - get the specification for your exam board and then make a note of any topics not covered in the playlist :)
@kirrans101
4 жыл бұрын
@@Cognitoedu got it, thanks so much! oh, one last thing, does this cover higher content (triple) or just combined?
@Cognitoedu
4 жыл бұрын
We cover triple and combined! Most of the videos have details about what content is triple/combined in the description - though be aware some of the older ones don’t have that info, so you’ll have to check those :)
Hi, do you illustrate these yourself? Sorry if it sounds unintelligent of me, and also, your videos help me soooo much, thank youuuu!
@Cognitoedu
3 жыл бұрын
Hi Bernice and thankyou! Yep, all of our illustrations are done by Tom, our animator 🙌
im having a test tomorrow, wish me luck! and thanks for the videoo
@Cognitoedu
3 жыл бұрын
Good luck!
Wow Cogz your a life saver truly❤👏
i watched this one day before my exam and I scored an A* thanks a million I watch your every video
@cathmacfarlane
3 жыл бұрын
Omg I know this is late but good job!! Exams suck ahhhh :(( but you did so well
Thanks for helping me with my homework
@Cognitoedu
2 жыл бұрын
Our pleasure! 😊
thank you i forgot our lesson but your here thank you actually my b day is today nov. 23
Thank you so much❤️❤️
best learning source
I learned lot in this video
Is it the 10% of the relative mass that is transferred or is it just 10% of the energy which is transferred?
@maplekong7790
2 жыл бұрын
I'm not particularly sure, but I think your best bet would probably just be relative mass/biomass. Hope this helps a bit, sorry for not being able to give a definite answer
@jimmysinclair1191
2 жыл бұрын
@@maplekong7790 That's alright, thanks anyways mate
sent for science 😭
science gang check
Does this gives answer to the q tha How much energy is consumed 🙄
Biology tmr😢
3years later ther's me🎉😂😂
Is this yt channel for triple science or double
@Cognitoedu
3 жыл бұрын
Hi Muhammad, we do both, for biology you'll find the triple science subjects at the end of the playlist 👍
@MuhammadAli-ft6pk
3 жыл бұрын
@@Cognitoedu thanks so much. Also how about chemistry
Thx for the vid now my teacher gives me more homework
this video sounds normal at 1.25 speed
Who's here in 2024?
@keyboardsmoosh
Ай бұрын
is this triple?
@AliMurtazaKhosoBaloch
27 күн бұрын
I am
@AliMurtazaKhosoBaloch
27 күн бұрын
Lol give me your name
Anyone studying this in 7th grade??
@savagex_2008
3 жыл бұрын
@Danica Cates ?
@yohannesj671
29 күн бұрын
And now you're grade 10
@savagex_2008
29 күн бұрын
@@yohannesj671 damn time goes by fast. Today’s my last igcse exam
Tomorrow is the Day...
@shaheerali7382
Жыл бұрын
2- 3 hours left🥶🥶🥶🥶🥶🥶🥶
@emyxsa
2 ай бұрын
my turn