They only have one electron in their outer most shell which makes them very reactive.
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.
Learn more about quaternary structure here:
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Answer: The four principal types of bones are long, short, flat and irregular. Bones that are longer than they are wide are called long bones.
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Answer:
left ventricle
Explanation:
left ventricle pumps oxygen rich blood to the body (away from the heart, so through the arteries)
Introduced to a habitat similar to their own introduced to a habitat different than their own outcompete native species generally have no native predators generally have native predators often have high reproductive rates often have low reproductive rates can tolerate a range of conditions