Why Does frog red blood cell contain hemoglobin?

Frog red blood cells contain hemoglobin to efficiently transport oxygen from the lungs to tissues throughout the body. Hemoglobin binds to oxygen molecules, allowing for effective oxygen delivery and contributing to the frog's ability to thrive in various environments. Additionally, hemoglobin also helps in the transport of carbon dioxide, a waste product of metabolism, back to the lungs for exhalation. This adaptation is crucial for their survival, especially in aquatic and terrestrial habitats.