The tool in the photograph is a _. It is used for_.

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

This drawing shows a human body system. what is the primary function of this body system?

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils. the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.