According to descartes what do animals and the human body have in common

According to Descartes, animals and humans have things in common and the things that they have both in common in which he had noted is the structures that they have in their body such as having blood, spirit, nerves, muscles, bones and other organs. He also adds that they have movements in which both they have in common.

is this a psat question, if so do not cheat try your best.