according to the video answer each question. there is the your inner fish website
http://www.hhmi.org/biointeractive/episode-1-your-inner-fish
there is the the story of the human body website : http://avaxbooks.me/goto?u6iqwaqarw7hbbg4y8
you can allocate four page for all the question , please answer each question. two page for the question 1 two page for the question 2.