Read the sentences from the sections "The Atoms" and "The Electrons." There is a separate box of elements below the main table (and an odd shape for the main table, with a bite taken out of the top) because of how the other parts of the atom – the electrons – are arranged.

In other words, the first element in each row starts a new shell containing one electron, and the last element in each row has two of the subshells in the outer shell fully occupied.

The two sentences develop the reader's understanding of the article by .

4the indian leaf butterfly has traits that allow it to resemble a leaf. the bright colors of the monarch butterfly indicate that the butterfly tastes bad and can be poisonous. how does the appearance of these butterflies them to survive? f the indian leaf butterfly is able to avoid predators while the monarch butterfly warns predators away. g. the indian leaf butterfly frightens predators away while the monarch butterfly poisons predators before they can eat it. h both butterflies rely on camouflage to avoid predation. j both butterflies cooperate with one another to avoid predation.

Number and variety of living organisms includes genetic, species, and ecological types

Which of the following statements about protists are true? a. they are typically found in moist environments. b. they are all unicellular. c. they have a nucleus. d. they are all multicellular.