<span>When an atom loses or gains electrons, it becomes an ion.
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The water on land, lakes, streams, even puddles are evaporated by the sun.....and you know the rest
Amino group
The term "amino acid" refers to an amino acid with an amino group immediately linked to the -carbon. These contain the secondary amines proline and hydroxyproline. They were previously frequently referred to as amino acids, which is incorrect because they lack the imine grouping HN=C. The archaic phrase is still used often.
The building blocks of proteins are amino acids, which are the chemical compounds that come together to make proteins. These biomolecules are essential for human growth and development and are engaged in a number of biological and chemical processes in the body. In nature, there are around 300 amino acids.
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Answer: A
the two continents were once a single landmass.
South America and Africa were once together.
