Energy that is transferred in waves or particles. Energy from the source. A. Radiation
B. conduction
C. convection

Eristics do scientists use to distinguish between organisms in different kingdoms

The circles, or orbits, for electrons are called energy levels. each level can hold only a certain number of electrons. add electrons to each level until you can't add any more. how many electrons can each level hold?

Ais a group of individuals of the same that exist together in the same place at the same time