Which process describes how organisms with favorable variations leave more offspring due to environment?

Which process describes how organisms with favorable variations leave more offspring due to environment?

• A. Pedigree
• B. Adaptation
• C. Natural Selection
• D. Vestigial Structures

Answer: (C)

The process is natural selection: environments act as selective pressures that favor heritable traits that improve survival or reproduction, so individuals with those advantageous variations leave more offspring. Over generations, this differential reproductive success shifts the population toward the favored traits, effectively adapting it to the environment. The key idea is that only heritable differences influence who leaves more descendants, not just individual luck or short-term success. For example, in a habitat with limited food, individuals with traits that help conserve energy or find food may reproduce more, passing those traits on. Other terms don’t capture this mechanism: a pedigree is simply a family tree, not how traits spread through populations; vestigial structures are remnants that illustrate history, not the process of differential reproduction; adaptation refers to the outcome of natural selection, the traits that arise as populations become better suited, rather than the mechanism itself.

The process is natural selection: environments act as selective pressures that favor heritable traits that improve survival or reproduction, so individuals with those advantageous variations leave more offspring. Over generations, this differential reproductive success shifts the population toward the favored traits, effectively adapting it to the environment. The key idea is that only heritable differences influence who leaves more descendants, not just individual luck or short-term success. For example, in a habitat with limited food, individuals with traits that help conserve energy or find food may reproduce more, passing those traits on. Other terms don’t capture this mechanism: a pedigree is simply a family tree, not how traits spread through populations; vestigial structures are remnants that illustrate history, not the process of differential reproduction; adaptation refers to the outcome of natural selection, the traits that arise as populations become better suited, rather than the mechanism itself.