Dragonflies are flying insects. In the summer, dragonflies can be seen perched on tree branches in an obelisk pose (i.e., a handstand position with the tip of their abdomen pointing upward). In 3–5 sentences, describe how dragonflies might control their body temperature and give reasons for why they might perch in this pose..

Answer 1

Dragonflies control their body temperature through behavioral and physiological means. They are ectothermic, meaning they rely on external sources to regulate their body temperature. By perching in an obelisk pose, with their abdomen pointing upwards, dragonflies minimize the exposure of their body surface to direct sunlight. This posture helps reduce overheating by limiting the absorption of solar radiation. It also allows for better airflow around their body, aiding in cooling through evaporative processes.