I believe the answer is descriptive science
Descriptive research aim to produce a data that describe a condition. It doesn't trying to analyze the data and find correlation or causation. In this case, the scientist trying to make catalog of new species. The result should be a list that could describe the species of the species. There is no hypothesis or variable in this research.
The thoracic cage is formed by the 12 pairs of ribs with their costal cartilages and the sternum.
The correct answer is option D
Both are made up of the same nucleotide, but in a different sequence
DNA is made up of same set of nucleotide only the sequence is different which generates different set of amino acids forming the proteins of different types.Proteins are the building blocks of DNA which are responsible for different characteristics of an individual.
The end product is proteins.
I believe you meant to say is this mistake called a base pair and if that is your question then no. it would be called Mutation. But you can double check that answer.