They both protect parts of other systems and both help them stand up and move.
they are similar when it comes to their limbs
The part of an animal cell that is similar to human skin would be the animal skin cells. The animal and human skin cells contain the same organelles.
Although they cannot be considered "the same" they have many similar structures. For example the design of the human hands is quite similar to the hands and feet of the frog. In a sense, the limb structure is very similar.
monkey
Human Skeletons
the human brainstem is the mos similar to that primitive animal
Exoskeletons and Endoskeletons both protect the animal. Both are a place for the animal's muscles to attach. This lets the animal move its body. Both types of skeletons are useful for supporting the body and holding it off the ground. An exoskeleton cannot grow, and must be shed each time the animal gets larger. An endoskeleton can grow, and animals with internal skeletons do not have to shed anything.
Chimpanzees
human
All animals at different, so it has to be a specific animal. Generally a human has a different skull. If the animal is an invertebrate, the human skeleton would have a spine whereas the invertebrate would not.
No
limestone