construction of this sentence is correct?
observing structure of the human anatomy has a long history of science, but there is always a question how the man during standing, walking or running gets required energy and uses it.

Question

Answer

Observing the structure of the human anatomy have been a part of the long history of science. However, there is always a question about how a human being obtains energy and uses it whilst standing, walking or running.

You could use 'But' instead of 'However' but 'However' is more formal for this kind of writing. Hope it helps :)

ご自宅で快適に語学を学べるチャンスをお見逃しなく。経験豊富な語学講師陣の中からお選びいただき、今すぐ最初のレッスンにお申し込みください！