Bio Olympiad (1 Viewer)

[vulgarfraction]

No. It's 4%. It took me ages but eventually the way it dawned on me was 1=(0.1+0.2+0.7)^2, then expansion of 0.1*0.2+0.2*0.1=0.04. If that makes sense.

Hey, what was the diaphragm one? Contract or relax? I remember spending ages just breathing feeling my lungs, before eventually settling for relaxing, to expand the lungs.

 

[cccclaire]

I'm gonna ask my maths teacher about the gene one. I can see how you could get 4%, I suppose it works.

And I think I put contract for the diagphram one, but I hardly even remember the question.

 

[vulgarfraction]

When you breathe in, the diaphragm contracts. Simultaneously the muscles between the ribs contract to raise the ribcage and move it outwards. These movements increase the volume of the chest. As the volume of the lungs increases, the air pressure inside decreases to be become lesser than atmospheric pressure. Air diffuses into the lungs from the outside, where there is higher pressure, to the inside.

Relax, to expand the lungs. Yes.

Hmm?

 

[midifile]

I can't even remember what i put for the diaphragm one.
I think just took a blind guess