Carbon-14 is a radioactive element. Assume you have 100g of C-14 and you let it sit for 2 full half lives. How much C-14 would be left over at the end of those two half lives?
25g
50g
75g
12.5g

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

Where are they though?

Both prokaryotic and eukaryotic cells have ribosomes and cell membranes