<span> - </span><span>A typical meal contains </span>all four<span> types of </span>macromolecules<span>. </span>Living things<span> are made of </span>four<span>types of molecules, known as </span>macromolecules<span>: ... Highly specialized at what </span>they<span> do, proteins form both the railways and the motors that ... it exists as a single strand and </span>has<span> a special building block not</span>found<span> in DNA.</span>
Barometer is used to measure atmospheric pressure :)
C no because many species went extinct without leaving fossils behind
Answer:
A
Explanation:
they all help and in different from but do the same things just in different ways
