Which organisms in the food web shown above compete for the same food source in this environment?
Grasshoppers and snakes
Hawks and frogs
Frogs and snakes
Decomposers and grasses

Ivan is looking at a cross section of a stem taken from a vascular plant. he sees two different types of vascular tissue: the xylem, which is closer to the center of the stem, and the phloem, located around the xylem, closer to the outside of the stem. how do these two structures work together in a living plant?