Which of the following pairs belong to the category of cold blooded animals?

✅ D. commensalism

✅ A. insects

✅ B. Vitamin D

Sunlight exposure enables vitamin D synthesis in skin. Read more

✅ C. thrombocytes

✅ C. Coal

✅ B. Tooth enamel

✅ C. Cornea

✅ B. Immunity