5. A humpback whale weighs 3 . 10 kg and a tiger shark weighs 5.9. 103 kg. Basheera says the humpback whale weighs about 20 times as much as the tiger shark. Elena says the
humpback whale weighs about 5 times as much as the tiger shark. Who is correct?

Gas exchange is the delivery of oxygen from the lungs to the bloodstream, and the elimination of carbon dioxide from the bloodstream to the lungs. It occurs in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli hope helps you