The ________ is the "screen" at the back of the eye?

_________ send messages from the senses to the brain.

What is the meat part of any animal?

A ___________ is what we call all the bones together. It is the structure of a body.

What sends messages from the brain to the muscle?

What is it called when a scientist cuts something open to figure out how a living thing works.

What is the name of the muscle that moves your lower arm?

What is the clear layer in front of the eye?

What is the place where two bones meet and can move?