The unusual property that cytochromes have in common with hemoglobin or myoglobin is that all of them contain heme groups. Cytochromes are heme-containing electron transport enzymes which are essential for the oxidative metabolism necessary to generate adenosine triphosphateas well as for the oxidative degradation of drugs and endogenous substrates.
Your answer would be A. Phosphorus
Keratin
Protecting the skin is one of its main responsibilities as a protein in epidermis.
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Answer:
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Fish and bird are biotic and the bird would hurt the fish depending on the species of birds since some birds are carnivores.
