In the beetles, what leads to reproductive success?

In the beetles, what leads to reproductive success?

• A. Random mating.
• B. The brightest colors mate more.
• C. The beetles with traits best suited to the environment survive.
• D. The environment does not influence survival.

Answer: (C)

Natural selection drives reproductive success: traits that help an organism survive in its environment tend to be passed on to more offspring. In these beetles, individuals with traits best suited to the surroundings are more likely to survive to reproductive age and produce more offspring, so those advantageous traits become more common over generations. Over time, the population becomes better adapted to the environment because the individuals who survive and reproduce carry the most fit traits. While brighter colors might sometimes aid mating, they can also increase predation or energy costs. Random mating ignores how survival and reproduction vary with traits, so it doesn’t explain why certain traits spread. And saying the environment doesn’t influence survival contradicts how different environments favor different traits. That’s why the best answer is that the beetles with traits best suited to the environment survive and reproduce more.

Natural selection drives reproductive success: traits that help an organism survive in its environment tend to be passed on to more offspring. In these beetles, individuals with traits best suited to the surroundings are more likely to survive to reproductive age and produce more offspring, so those advantageous traits become more common over generations. Over time, the population becomes better adapted to the environment because the individuals who survive and reproduce carry the most fit traits.

While brighter colors might sometimes aid mating, they can also increase predation or energy costs. Random mating ignores how survival and reproduction vary with traits, so it doesn’t explain why certain traits spread. And saying the environment doesn’t influence survival contradicts how different environments favor different traits. That’s why the best answer is that the beetles with traits best suited to the environment survive and reproduce more.