Air-breathing insects and vertebrates rely on aerobic metabolism
for sustained production of ATP, but they effect oxygen supply by
completely different means. Using two species of your choice (one
for each taxon), compare and contrast the way these two groups
deliver O2 from the environment to their tissues. Consider the
scaling laws for the gas transport cascade and explain why there
are no insects larger than 100g, but there are plenty vertebrates
larger than that.