Large covalently-bonded molecule that has a repeated structural unit

I believe the answer is: polymer

Polymer is consist of smaller repeated sub units. This substance could be found in our DNA structure and the synthetic plastics that we use for our shopping. In our body, polymer also play a role in the encoding the information that is necessary for protein creation.

bacteria – a word that often brings out a sense of uneasiness in most of us are, in fact, one of the earliest forms of life. it can be quite unnerving to know that there are bacteria all over your skin, hair, and even inside the body. but only a few species of bacteria are dangerous. the majority of bacteria are good, and without them, life on earth wouldn’t be possible. let’s learn more about how are bacteria essential for you to survive.