Nature kills the weaker organisms and selects only the strongest organisms, which can survive and flourish. thats the right answer

This statement is correct but as we know it is also called natural selection

This is what i found on google“ the monomers combine with each other via covalent bonds to form larger molecules known as polymers. in doing so, monomers release water molecules as byproducts. this type of reaction is known as dehydration synthesis, which means “to put together while losing water. in the process, a water molecule is formed.” i hope this you