Cell receptors and antibodies are similar in that both a. are produced by nerve cells. b. are highly specific in their actions. c. slow the rates of chemical reactions. d. are involved in digestion.

B. They are highly specific in their actions is correct

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