In the Sierra Nevada Mountains of California there are many populations of the Checkerspot butterfly Euphydryas editha. You notice that females of one population lay their eggs near the tip of a plants stem (population A). Females of another population in the same area lay their eggs at the base of the stem on a different species of plant (population B). The young hatch out as caterpillars; they live on the host plant and eat its leaves. Is the information above a complete description of the butterflies niche? No, because I also need to know how many times they reproduce. No, because there are physical and biological factors missing from the description Yes, because both eggs and adults are described above. Yes, because I know the butterflies live in the Sierra Nevada. Yes, because eggs, young, and adults are described above..