A. Rectal salt gland
B. Endocrine glands
C. Pituitary glands
D. Digestive glands
🧠 Explanation:
Birds consuming marine food excrete excess salt through the rectal salt gland, aiding survival. For biology students, this highlights physiological adaptations, making it a key topic for studying avian biology, environmental science, and marine ecosystems. The gland maintains salt balance in harsh conditions. Understanding this reveals how animals adapt to marine diets. It’s essential for analyzing ecological adaptations, animal physiology, and biodiversity. Studying the rectal salt gland offers insights into survival mechanisms, crucial for biology, ecology, and conservation, ensuring a clear understanding of how birds thrive in marine environments and contribute to ecological balance.