Natural selection is a process where organisms better adapted to their environment tend to survive and produce more offspring. Factors that would NOT cause an organism to be naturally selected typically do not influence an organism's survival or reproductive success. Here are a few examples:
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Random Genetic Mutations that Do Not Affect Fitness: If a mutation does not impact the organism's ability to survive or reproduce, it would not be subject to natural selection.
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Environmental Changes that Do Not Affect the Organism: If an environmental change occurs that does not influence the survival or reproductive capabilities of the organism, it would not be a selective pressure.
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Inherited Traits that Do Not Influence Survival or Reproductive Success: Traits which do not provide any advantage or disadvantage in terms of fitness would not affect natural selection.
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Neutral Phenotypic Traits: Traits that do not affect an organism's ability to find food, evade predators, or reproduce will not be subject to natural selection.
Any of these factors would not lead to natural selection acting on an organism.