3.What are the body structures that both descendants share with this common ancestor? 4.Why do paleontologists make diagrams like this? What are they trying to show?

How are viruses and bacteria different?

The earths core is made up mainly of what 2 substances? 2. like an egg, earth has a core, a layer surrounding the core, and a thin, hard outer layer. which layers of the earth match the layers of an egg?

Which of the following requires the use of energy and the of transport proteins to move a molecule across a cell membrane?