Stars are classified according to their temperature and luminosity. Using the Hertzsprung-Russell diagram compare and contrast white dwarfs with super giants.

In a cladogram' when does a group of organisms branch off

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 glial cells form myelin in the central nervous system?