Blood is essential for sustaining the wellbeing and life of the human human body. It's got numerous capabilities, which includes providing nutrients and oxygen. The 4 principal factors of blood are crimson blood cells, white blood cells, plasma, and platelets. Ticks, leeches, woman mosquitoes, vampire bats, and an assortment https://www.youtube.com/watch?v=buIHtQY7fCU