Question #1: D
Question #2: B
These are the correct answers hopefully. I knew the second one, but the first one I had to look up and do a wee bit of research
Answer:
C
Explanation:
because it is a polymer of amino acid so it will be a protein
hope it make sense:)
Tracheotomy refers to creating an opening in the neck in order to place a tube into a person's windpipe.
Answer:
Either (1.) Fossils or (2) Radiometric dating.
Explanation:
Fossils are an obvious answer to this, but radiometric dating is the method most scientists use to find the age of rocks. Radioactive isotopes break down predictably, so the farther along this process is, the older the rock is.
