Question

সিয়ামের টবে কোন পুষ্টি উপকরনের অভাব ঘটেছে ব্যাখ্যা কর​

Answer 1

Answer:

Shape of Red Blood Cells. Erythrocytes are biconcave discs with very shallow centers. This shape optimizes the ratio of surface area to volume, facilitating gas exchange. It also enables them to fold up as they move through narrow blood vessels.