variegated limpets are a different species from olive limpets. they live on the same rocky benches along the same sea shore, and eat the same kinds of foods. they are both active only at night. the variegated limpet lives only in tide pools that are typically 5 - 15 meters from the tide lines, the olives in pools 1 - 3 meters from the tide line. hence they rarely encounter each other, especially in the breeding season, and never have offspring. this is an example of isolation. (mark all that apply)