Hemoglobin is a special protein in the blood that captures and carries oxygen.
The lateral line system provides tactile sense organs ( that is from cyclostome fishes to amphibians or the aquatic vertebrates) with a sense of distant touch, enabling these animals to sense objects that reflect pressure waves and low-frequency vibration. This system made up of multiple of neuromasts.
To be honest, since we live on Earth (assuming you do as well), Earth is the easiest planet to study. We don't know much about the other planets because we've never been to any of them. I believe that the second easiest planet to study is either Uranus or Saturn.
Answer:
Left ventricle
Explanation:
I think the left ventricle is propably superior and broad border of the simply because it pumps blood and other usefull products from the heart to furthest parts of the body
