Final answer:
The term that describes an organism active during the day is diurnal. Diurnal organisms are part of the circadian rhythms, aligning their activity with daylight, unlike nocturnal animals like bats or owls.
Step-by-step explanation:
The term that describes an organism that is active during the day is diurnal. Organisms that follow such a pattern align their activity cycles with the daytime and are often asleep or less active at night. This behavior is part of the circadian rhythms, which are natural, internal processes that regulate the sleep-wake cycle and repeat roughly every 24 hours. In contrast, animals that are active at night and sleep during the day are known as nocturnal. Examples of nocturnal animals include bats and owls, while humans are generally considered diurnal.
Examples of Diurnal Activities:
- Most people wake up with the sunrise and are active throughout the daylight hours.
- Many mammals, insects, reptiles, and birds engage in feeding, mating, or other activities during the day.
Each organism has adapted to its specific cycle of activity to better suit its environment and survival needs.