How long ago did two species of birds share an ancestor
Answer:
Most macromolecules are made from single subunits,called monomers. The monomers....building blocks are combine with each other using covalent bonds to form larger molecules called polymers.
Monomers release water molecules as by-products and this process is called condensation.
C.) mountain ranges because of convergent boundries
The SI unit for power is the watt.
