A. Hypnagogia
B. Estivation
C. Hibernation
D. All of these
🧠 Explanation:
Long sleep in animals during winter is termed hibernation, conserving energy. For biology students, this highlights animal physiology, making it a key topic for studying ecology, zoology, and environmental science. Hibernation ensures survival. Understanding this clarifies animal adaptations. It’s essential for analyzing biology, ecology, and zoology. Studying hibernation offers insights into how animals endure cold, crucial for biology, environmental science, and wildlife studies.
