Answer:
Based from the definition of terms presented, the following is the answer to the questions.
1. B. The study of statistics such as birth rate and death rate.
2. B. A group of symptoms that occur together.
Answer: but, however, in spite of, on the other hand, nevertheless, nonetheless, in contrast, on the contrary, still, yet AND first, second, third, next, then, finally
Explanation: These are some good transition words to put with your sentences. If your writing about a topic with 3 points, you can start the paragraph off with "first, second", ect. If your wanting to transition into something different, then use some words such as "but, however, in contrary", ect. It all depends on what your writing about and what type of essay your writing so make sure you use them appropriately.
Understanding more about both the company you hope to work for and its competitors will help you appear competent and well prepared for the interview. It will also assist you in preparing good questions to ask of the interviewer if you are given the chance to do so.