Science Homework Help

I’m working on a anatomy question and need an explanation and answer to help me learn.

https://hcc.instructure.com/courses/102971/files/10951935/download?verifier=7kIQpdUBQgXD96CgYK4iyciw15oTs0OblbrcsTmO&wrap=1

https://hcc.instructure.com/courses/102971/files/10951931/download?verifier=hqwoPh8oToNKOwPtMoScVRb0Ud0Fn6ONJcouEjkt&wrap=1