Aqueduct carries water over a long distance.
The structure that surrounds the cell membrane of some cells, giving the cell a rigid shape is the cell wall.
I believe it’s the sun
As the sun gives nutrients to the plant
Plant gets satin by animal
Animal gets eaten by animal and so on and the nutrients would be passed on
I believe the correct answer is upwelling. Lets say we have producers such as plankton. well upwelling currents bring dead matter from the ocean floor up to the surface, creating plankton.
That would be a covalent bond. Hope this helps!
