It's a bugs life...big evo bugs?

Question

Me again

Fact: Bugs have a body diameter of only 2cm as they breather through spiracles and not lungs. The ratio of respiration with a concentration of oxygen at 21% (todays enviroment) prevents them from getting bigger as it would be extremely difficult to load oxygen over a lobnger distance to respirinig tissue.

This prevents bugs getting any bigger than 2cm in diamtere

Execptions to this are things like Stag or Rhino beatles, but their large body index is due to their exoskelteon casing, which is made up of chitin and is non respiring.

Back in the days..lets use evo years for arguments sake
bugs were gigantic, Everyones favourite paleontologist ross Geller from Friends has a fossil of A dragon fly with a wingspan over 30 inches on his wall i am sure you have all seen it.

Ok here's the second fact

A dragon fly may rise to an enormopus size and have a wing span over 20 inches becuase it's able to load its body with enoguh oxygen

Given todays oxygen levels d-flies and other insects can't get that big

therefore in order to get as big as the ones in the fossils they must have been able to load even more oxygen into their lungs then the ones living today.

This would indicate that: the oxygen concentration back then must have been a lot higher.

Dino's have been foubnd with nostrils the same size as a horse. People wonder how they breathe as the friction in their air sacs msut have started fires

Not so difficult if you live in at atmosphere with a much higher concentration of oxygen

therefore

i conclude espeically so for the insects

that the loss of big sizesbears a relationship to the loss of oxygen pressures and concentrations

we safe so far
ok i go on

THese losses may have resulted from a cataclysimic event that forever altered our oxygen concentration

2 events that everyone agrees on to some description

either a meteorite or the flood

A meteorite may have caused oxygen levels to alter, but not for millions of years, there would have been restoration and a return to the oxygen levels previosduly seen

as is the case with volcanoes like krakotoa that have blotted out the sun for days,. o2 levels eventually returned

The flod was not just a flood but also saw the destruction of a layer which creationists refer to as a frimament

trapping the gas levels making earth a much hotter greenhouse and doubling the gas concentrations.

those are the theories. Lets extend
evolution would suggest
that the oxygen levels in the world hjave been dwindling over time
resulting in bugs that can't get as big

The meteorite version suggests a catastrophic decline in oxygen leading to reduced creatures but an eventual rise in oxygen back to normal levels and so the return of still inmpressive lokibng bugs

while the creo argument says that no more giant bugs as creo world conditions have been lost

The question is

If a test was done to grow d-flies in conditions of higher oxygen and if....

they grew to enormous sizes

what would it mean to scientist?

a. That we don't need millions of years of evo to recreate similar conditions

b. we have successfully create the conditions that re-enact those millions of years to get big bugs

c. creo evo has some evidnece?
resotration in oxygen levels has enabled bugs to get big again

or d? any answer from you would be great

Answer 1

say what?