"We had passed through long walls of piled skeletons"
ex 1, personal= you could discuss you problems with your peers
ex 2, academic= you could get help from teachers and/or someone of a higher rank
ex 3 professional= you could discuss business ideas with fellow coworkers
hope this helps!! :)
Answer:
The author uses the word "metamorphosis" to describe the "four-stage process of change." They are introducing new vocabulary terms in a friendly context. They also may have included it because it's the most accurate scientific term for the process of growth undergone by the beetle.