Do fish have blood?

Fish:

1. Fish are scaly-skinned vertebrates that swim in the water and breathe through gills.
2. Fish have blood and it is red in color.
3. fish have a red pigment called hemoglobin that is responsible for the red color.
4. Similar to humans, fish have a circulatory system with blood and a heart that acts as a pump
5. A fish's whole body weight is around 10% of its blood.
6. Fish use hemoglobin in their erythrocytes to transport oxygen from their gills or lungs into their tissues and organs via their circulatory system, which consists of heart-pumping blood flowing through arteries and veins.,this means that fish have blood.