Amino acids create protiens, endless possibilities of combinations of amino acids result in a wide variety of proteins
The answer would be (b) evolutionary species concept.
Hyperkalemia, depolarization
Hope this helps.
There’s a lot but probably you know the basics like they’re vertebrates which means they got back bones , they have a scaly skin , they reproduce shelled eggs , cold blooded
I'm sorry, but I would need to see the options.