Answer:D
Explanation:
Respiration is the process of taking in oxygen and release of Carbondioxide in the lungs(breathing),the absorption of the oxygen in the alveolar, into the blood stream for distribution to tissues , the combustion of the metabolites(glucose,amino acids, and fatty acids and glycerol)with the inhaled oxygen to give energy as ATPS and water vapour.
Archaeopteryx had "teeth, three claws on each wing" similar to dinosaurs. So, most appropriate answer would be Teeth & Wings
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<span>when the breaking down of acetylcholine is not performed, then symptoms similar to those of poisoning with acetylcholinesterase inhibitors would occur. This would be highly hazardous to the human system as severe poisoning as we all know is very lethal. Even a fetus would not develop with this.</span>