BIOLOGY VSQs ✔️Q 1. Blood group was discovered by whom? 👉 Landsteiner ✔️Q 2. The ph value of human blood is__? 👉 7.40 ✔️Q 3. Name the largest gland in the human body? 👉 Liver ✔️Q 4. Ductless glands are known as___? 👉 Endocrine glands