Thank you so much for these videos!! They explain everything clearly and super quickly:)

I wouldn't be able to understand half of the biology content without your videos! Absolute lifesaver, thank you tonnes :)

can u make 7.1 and 7.2

Thank you very much for these videos, they're extremely helpful!

This was so easy to understand! Thank you so much

you save my revision ❤️

Hey bio rach could you please make 7.2 please

Omgg you are the best at explaining

your videos are amazing thank you so much!

Perfect! Makes sense. Thanks

thank you !

Thanks

are the surrounding cells muscle cells?? Thank you!!

@BioRach

3 жыл бұрын

Yes, muscle cells for insects to move/fly :)

So helpful!

so is chitin for support and protection, or just for support?

does gaseous exchange take place betweeon the air and the tracheal fliud of across the wall of the tracheole?

@BioRach

3 жыл бұрын

Yes!

Can you do 7.2 as well please? Tysm x

can you do the human lungs please

Best explanation

Helloooo😊, I’m sitting my alevel independently and I’m really liking your videos. If I was to use just your videos to gain the knowledge part of biology do you think that would be sufficient? Thank you in advance and thank you for the videos 🤍

@BioRach

9 ай бұрын

Hi there! Watching my videos will help with the knowledge bit for most of the content, but you'll have to do more learning on any topics that I haven't covered! I will be making more videos when I have time :) Best of luck!

my guy

quick question is ventilation and gas exchange the same thing

@BioRach

3 жыл бұрын

No they are different! Ventilation is the mechanical process of breathing, where your intercostal muscles, diaphragm and ribcage change your thorax volume abd pressure to either draw air into your lungs or to push them out. Gas exchange happens in the alveoli, where the oxygen and carbon dioxide move between the alveoli and the capillaries. A lot of people mix them up. Hope this clarifies it!

Hi please shoutout

You just not gonna finish the topic then Rachel¿?