Final answer:
The blind mole rats synchronize their suprachiasmatic nucleus (SCN) activity to light to regulate their circadian rhythm and align their internal clock with natural light-dark cycles, despite their poor vision.
Step-by-step explanation:
The blind mole rats synchronize their suprachiasmatic nucleus (SCN) activity to light even though they cannot see well enough to make use of the light because the SCN is responsible for controlling the circadian rhythm of the body, which regulates various physiological events to occur at approximately the same time every day (Welsh, Takahashi, & Kay, 2010). Although blind mole rats cannot perceive images, the presence or absence of light can provide information about day length, allowing them to establish a 24-hour rhythm. This synchronization to light may have evolved to help the blind mole rats adapt to their environment and maintain their internal clock aligned with the natural light-dark cycles (Klein, Moore, & Reppert, 1991).