Answer:
There wouldn't be enough surface area for the electron transport chain.
The 30 million years ago, because its the closest one to us. Wait is there a picture to it ?
Because their TEETH ARE MISALIGNED AND THEY USUALLY POSSESS LONG TONGUE. Respiratory illness is common in people who have down syndrome and their unique airway anatomical factors makes airway management difficult during respiratory distress. For instance, they have narrower upper airway and smaller trachea.
Membrane is the answer i think
The answer for the first question is
1. 5ml
The answer for the second question is
2. 4g/ml