I PUNTIL
Light travels from the Sun to Earth. Which of the following characteristics of
electromagnetic waves does this demonstrate?

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?

What do all of the above organisms have in common

Which of these structures are found in both plant ans animal cells?