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Q&A Which protein is more efficient at oxygen extraction for an AIR BREATHING aquatic species? Haemoglobin or Haemocyanin?

Another question concerning the Tetrapi, I would like to know if having haemocyanin-based blood (copper-based blue blood) would be an advantage over having haemoglobin-based blood (iron-based red b...

1 answer  ·  posted 7y ago by Andsaur‭  ·  last activity 7y ago by Andsaur‭

Question biology atmosphere evolution creature-design