Answer:
Yellow fever is a disease caused by a virus that is spread through mosquito bites. Symptoms take 3–6 days to develop and include fever, chills, headache, backache, and muscle aches. About 15% of people who get yellow fever develop serious illness that can lead to bleeding, shock, organ failure, and sometimes death.
Explanation:
I copy and pasted this from the internet but you can easily summarize this in different words.
Subordinate means someone who is of lower rank in a job. So the manager spoke to someone in a lower rank than him in a cordial tone.
The word you are looking for is Bibliography. Remember that a bibliography is <span> a list of sources, usually appearing at the end of a research paper, an article, a book, or a chapter in a book. The list documents sources used in the work and points out sources that might be useful for further research. every single entry helps the reader to know more about an especific information and for them to read the whole reference</span>
It would be the robin redbreast.