In the Sierra Nevada mountains of California, there are many populations of the checkerspot butterfly, Euphydryas editha. You no
tice that females of one population, population A, lay their eggs near the tip of a plant's stem. Females of another population in the same area, population B, lay their eggs at the base of the stem on a different type of plant. The young hatch as caterpillars, and they live on the host plant and eat its leaves. The choice of different host plants by members of these two populations of butterfly: decreases competition among members of the same butterfly population. increases competition among members of the same butterfly population. increases competition between members of the two different butterfly populations. decreases competition between members of the two different butterfly populations. has no effect on competition between members of the two different butterfly populations.
decreases competition between members of the two different butterfly populations.
Explanation:
The choice of different habitats may be beneficial for the populations of butterflies since it enables to both groups to survive and reproduce without the need to compete for limited resources (in this case, the host plants)
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Mountain slopes have faster erosion because it is easier for fast moving bodies of water to carry down eroded material downhill, rather than across flat land.
