They both have a plasma membrane and protoplasm.
They both contain DNA.
your anwer is c) The two types of wings share a common function (and therefore are both called ... the bird wing and insect wing did not arise from an original ancestral structure ... When the gill slits became supported by cartilaginous elements, the first set of
Amino acids are molecules that have a carboxylic acid group and an
amine, attached to a specific carbon atom known as the α carbon. There are 20
amino acids, and they are different from each other, in the sense that each has
a different side chain, known as the R-group and this R-group is attached to
the α carbon.
