Final answer:
The molecular structure of water allows it to transport materials through organisms due to its unique properties, such as being an excellent solvent and forming hydrogen bonds. Water carries dissolved substances that are crucial for life in rivers, oceans, plants, and the human body.
Step-by-step explanation:
The molecular structure of a water molecule allows it to carry out the function of transporting materials through the bodies of organisms due to its unique properties. The bent shape of the water molecule, along with the presence of hydrogen atoms, enables water molecules to form hydrogen bonds with other molecules. This makes water an excellent solvent, allowing it to dissolve substances and transport them throughout organisms.
For example, in rivers and oceans, dissolved oxygen in water enables organisms like fish to respire. In plants, water carries dissolved nutrients that are essential for growth and development. In the human body, water transports dissolved substances, such as hormones and neurotransmitters, through the bloodstream to various cells and organs.