Seed travel allows the offspring of a plant to grow farther from their parents. This prevents them from competing with each other over resources.
Answer:
Gas exchange between tissues and the blood is an essential function of the circulatory. The air contains oxygen that crosses the lung tissue, enters the bloodstream, and the alveoli are in direct contact with capillaries of the circulatory system. As water flows over the gills, oxygen is transferred to blood via the veins.
Explanation:
Because if you come across something surprising, it's best to know how and why that happened