Question

Based on Darwin’s ideas of descent with modification and natural selection, which observation would best support the idea that increased competition causes changes in a species?(1 point) Responses A population of deer show an increase in antler size over time, which allows them to obtain more mates during mating season A population of deer show an increase in antler size over time, which allows them to obtain more mates during mating season A population of frogs develop greener skin after a hurricane blows away the white flowers in the environment A population of frogs develop greener skin after a hurricane blows away the white flowers in the environment A population of artic foxes develop a brown fur color as warmer temperatures reduce the number of days of snowfall in the area A population of artic foxes develop a brown fur color as warmer temperatures reduce the number of days of snowfall in the area A population of rattlesnake goes extinct as the water resources in their environment dry up during an extreme, prolonged drou

Answer 1

The observation that would best support the idea that increased competition causes changes in a species is:

**A population of deer show an increase in antler size over time, which allows them to obtain more mates during mating season.**

This example clearly illustrates how increased competition (for mates) can drive natural selection, leading to changes (increased antler size) in the population over time as those individuals with larger antlers may have a reproductive advantage.