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Slide 2

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The breathing system:
·We need a constant supply of oxygen for cellular
respiration
·Breathing brings Oxygen in and Carbon dioxide out
Nose
Mouth
Thorax…read more

Slide 3

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Adaptations for gas exchange:
Very thin walls
lets diffusion
Moist to take place
surface to over a short
allow gases distance as
to dissolve possible
Rich blood
supply Spherical
maintains a shape
concentratio increases the
n gradient surface area…read more

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