GCSE Biology - Immune System (Defences Against Pathogens) #38

"If you haven't noticed the body is covered in skin" -Cognito 2018

Post-Video Quiz: 1. Name three ways that your skin protects you from pathogens 2. Name two ways your nose protects you from pathogens 3. What does mucus do? 4. How does your stomach kill pathogens? 5. Name 3 functions of white blood cells 6. What is an antigen?

Paper 1 biology tomorrow. Almost all of my revision is these videos. Wish me luck

this is great for revision ngl

these videos are DEFINITELY worth making. They are amazing and help me so much in my exams, because of you I've got 9s in all of my sciences.

If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org/ - it's totally free, and has been built specifically to make learning and revision 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 at a glance 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

You explain things very well, better than other videos I've watched, really helped me understand a lot of the concepts for my GCSE exams

He's actually really good.

This is so useful, i also like the little drawings :D

Got my bio test tomorrow and imma watch like 40 of ur vids tonight 😅

These videos you're making really are blessings for all of us

This is so brilliant for independent Biology studies

I got my gcse in a bit and I whatched your vids for 2 years now , thank you

Tbh u r the best so far...all ur explanations r well details linking each other.🎉🎉

i really didnt understand the textbook because it looked so messy and many words that i dont understand, so this helped me a lot , thanks !

i have a biology exam tomorrow, this has really helped!

does this include content for separate science also?

this man has fully saved my grades

Thank You so much for making this video it really helped me a lot

Cognito is like the best YouTuber to use for studying 📖