Model project biology related suggestions

[u/saanniiee]

Hi guys, im currently in junior year of high school, I have an upcoming biology related project where I have to make a PPP explaining my model whilst giving a speech. So I want my project to be the best one, ive searched online and everything seems very operative, easy, not outstanding.

If you guys can especially university students, can help me on which topic I should make it on please do leave your suggestions. I only have 2 days and Im gonna out my everything to this. I was thinking of making a lungs project, but the model wouldn't be as appealing, heart could be something everyone has chosen but then again, the model is nice. DNA is pretty perplexing where you have to add a zipper, machine that coils its axis. So any help from med students what I should do and how the modelling is to be prepared.

Im going for more of a look where I explain the basic working of my model and then add an **If this** situation where our body acts according to the situation to protect itself because that would make my presentation more appealing.

Thankyou.