AS Biology - Biodiversity and sampling OVERVIEW (OCR A Chapters 11.1-5)

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  • เผยแพร่เมื่อ 5 ต.ค. 2024

ความคิดเห็น • 50

  • @schase8995
    @schase8995 5 ปีที่แล้ว +66

    been binge watching your videos to prepare for my actual a levels which are in less than a month, you are a star thank you for these videos

    • @BioRach
      @BioRach  5 ปีที่แล้ว +6

      haha I'm glad that you find them helpful!! All the best with exam preparations and thanks for watching :D

  • @taishapeplowska1189
    @taishapeplowska1189 5 ปีที่แล้ว +16

    This is exactly the way I learn the content. 20 days to the exam and I am listen to your videos whilst getting ready in the morning. Thank you xxx

    • @BioRach
      @BioRach  5 ปีที่แล้ว +5

      These summary mind maps are proving to be an awesome way to go through key content in each chapter...! I'm doing the same for my classes, which was where I got the inspiration from when planning to make this video :) Glad to hear the videos are helping you! And wow, that dedication!!! I'm impressed :D All the best with your revision and thanks for watching!

  • @inayab6104
    @inayab6104 5 ปีที่แล้ว +38

    honestly one of my favourite ways to revise. really useful as year 12 exams are so soon

    • @BioRach
      @BioRach  5 ปีที่แล้ว +4

      haha it's great you know what works best for you in revision! :D Thanks for watching and all the best with your exams!

    • @yilinz7883
      @yilinz7883 5 ปีที่แล้ว +2

      im honestly shitting it lol

    • @ftcupid4466
      @ftcupid4466 5 ปีที่แล้ว +1

      lmao i have 5 days until my bio exam and im binge watching all of these i--

  • @edwardlane8374
    @edwardlane8374 4 ปีที่แล้ว +44

    Honestly trying to do this during quarantine has made me not understand at all, so thank you for making it so easy to get. I did chuckle though when you said that i would've done some of it in fieldwork... rip my PAG work corona.

    • @BioRach
      @BioRach  4 ปีที่แล้ว +4

      Haha glad it helped! Yes it can be hard to self-teach a lot of this stuff so glad you found the videos helpful :) you'll do some fieldwork at some point don't worry. Technically you can grab a tape measure and something that's like a loop or sorts as a quadrat and do some sampling in your garden if you've got one XD

  • @aimenkhan4269
    @aimenkhan4269 5 ปีที่แล้ว +16

    This was so good. My actual teachers are incomparable to you and your explaining. Thank you so so much xxx

    • @BioRach
      @BioRach  5 ปีที่แล้ว +1

      This is not an easy topic to teach, but I'm glad the video helped you understand it! :D thanks for watching!

  • @shaziekhan639
    @shaziekhan639 4 ปีที่แล้ว +27

    I hate this topic with a PASSION but I still have to learn it.

    • @BioRach
      @BioRach  4 ปีที่แล้ว +4

      Haha unfortunately so...! But it's honestly not that bad, given that this is all that you need to know 😬

    • @folakemi1716
      @folakemi1716 3 ปีที่แล้ว

      Honestly😂😂😂

  • @ambys1709
    @ambys1709 3 หลายเดือนก่อน

    i find this topic so unbearably boring but you make it so easy to just *get*
    thank you so so much for all your hard work !!

  • @haydenchisholm1755
    @haydenchisholm1755 ปีที่แล้ว +8

    Anyone else just started Paper 2 revision

  • @mounira7443
    @mounira7443 2 ปีที่แล้ว +1

    These overview videos are AMAZING! Tysm for making them!!

  • @amyscarfe1865
    @amyscarfe1865 2 ปีที่แล้ว +1

    This is unbelievably helpful thank you!

  • @pavindranbvijayandran6494
    @pavindranbvijayandran6494 4 ปีที่แล้ว +5

    This is some S tier stuff 🤘🏾🤘🏾

    • @BioRach
      @BioRach  4 ปีที่แล้ว

      Thank you! :)

  • @viclate428
    @viclate428 3 ปีที่แล้ว +2

    Thank you so much! You've made me so much more confident for my exam

  • @JimJam-ju6vn
    @JimJam-ju6vn 3 ปีที่แล้ว +6

    if i watched this and the second part, does that cover everything i need to know for the biodiversity topic?

  • @akankwasaramona9306
    @akankwasaramona9306 ปีที่แล้ว +1

    Thank you soo much😊this was really helpful

  • @roxers8700
    @roxers8700 5 หลายเดือนก่อน +1

    it isn't a line transect at 14:50 it should be a belt transect.

  • @yassiec5294
    @yassiec5294 4 ปีที่แล้ว +7

    exam is in 15 mins and I'm watching this hahahaha

    • @BioRach
      @BioRach  4 ปีที่แล้ว +2

      Hope it went well :) Thanks for watching!

    • @yassiec5294
      @yassiec5294 4 ปีที่แล้ว +7

      btw i got an A! wooo

    • @BioRach
      @BioRach  4 ปีที่แล้ว +1

      @@yassiec5294 Nice, well done!!! :D

    • @jsjdhdhdhd5597
      @jsjdhdhdhd5597 4 ปีที่แล้ว +1

      @@yassiec5294 how did you revise? I’ve just started year 12 and I’m struggling, do you have any tips? X

    • @yassiec5294
      @yassiec5294 3 ปีที่แล้ว

      @@jsjdhdhdhd5597 I use mostly flash cards as you can learn so much in such short time- or big posters/mind maps like these! Xx

  • @_-_-__-_-_5428
    @_-_-__-_-_5428 5 ปีที่แล้ว +3

    Great vid 👍 - btw how much of this d’you think would be relevant to AQA? Thanks anyway :)

    • @BioRach
      @BioRach  5 ปีที่แล้ว +2

      Sorry I'm not sure. Personally not familiar with the AQA spec, but the science itself should be the same! I'd imagine the differences would mainly be the level of detail and question types, but better check with your textbook or ask your teachers to know for sure :) Thanks for watching!

    • @_-_-__-_-_5428
      @_-_-__-_-_5428 5 ปีที่แล้ว

      @@BioRach oh okay thanks for that🤘

  • @abdulemalik8848
    @abdulemalik8848 4 หลายเดือนก่อน

    Thank you. God bless.

  • @elinakoulias2434
    @elinakoulias2434 4 ปีที่แล้ว +2

    hi, i don’t think you have to learn the simpson index equation, i think it is provided. please can you confirm this?

    • @BioRach
      @BioRach  4 ปีที่แล้ว +2

      You're correct, you don't have to memorise the equation. But you do have to learn what the symbols mean, which is what a lot of people struggle with...! As long as you learn the symbols' meanings, then you'll be fine :)

  • @d2012dd
    @d2012dd 5 ปีที่แล้ว +2

    Just to clarify, at 14:41 isn't the sampling method described an interrupted belt transect - as opposed to a line transect?

    • @BioRach
      @BioRach  5 ปีที่แล้ว

      As far as I'm aware, you only need to learn about random sampling and systematic sampling using a line/belt transect. I guess the term "interrupted belt transect" seems to be describing the same thing...?

    • @d2012dd
      @d2012dd 5 ปีที่แล้ว +3

      @@BioRach I thought that a line transect is when only species touching the tape measure are recorded, whereas a belt transect is when a quadrat is used adjacent to the tape (e.g. for %cover). It's a minor detail nonetheless.

    • @jeffo8520
      @jeffo8520 5 ปีที่แล้ว +3

      @@d2012dd yeah you're right.

    • @anon9
      @anon9 5 หลายเดือนก่อน +1

      ​@@BioRachan interrupted belt transect is when you place quadrats on the line at intervals, to save time, instead of right next to each other.

  • @pakvsindia610
    @pakvsindia610 5 ปีที่แล้ว +1

    nice ! Well explained

    • @BioRach
      @BioRach  5 ปีที่แล้ว

      Glad to know you find it helpful :D Thanks for watching!

  • @swarooproy9001
    @swarooproy9001 5 ปีที่แล้ว

    Hi
    Do you do teaching on skype
    Thanks

  • @pakvsindia610
    @pakvsindia610 5 ปีที่แล้ว

    pdf of this pls