When two protein chains combine to form an active protein, the structural level is quaternary.
<h3>What is a quaternary structure?</h3>
The quaternary and tertiary structure of a protein is the tridimensional shape of the protein, which involves protein domains.
The quaternary protein structure refers to the different arrangements generated by different protein subunits.
The primary structure of a protein involves its amino acid sequence, whereas the second structure involves protein chains.
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brainly.com/question/5286438
Answer:
All your going to do is right down what you see and what it's doing for the first question and then if you have any questions does that awnser your question?
I’m pretty Sure it’s A sorry if i’m wrong
Answer:
Cells connect together to form a battery
Explanation