What relationship exist between changes in the environment and variations
A) Changes in the environment cannot change which traits are advantageous
B) Changes in the environment can act only on existing variations in the population
C) Changes in the environment can only cause new variations to appear
D) Changes in the environment cannot influence the fitness of an organism
B) Changes in the environment can act only on existing variations in the population
Changes in the environment can create selective pressures that favor certain variations within a population, leading to changes in the gene pool over time. This process is known as natural selection. New variations can also arise through mutation, but it is the existing variations that are acted upon by changes in the environment.