What advantage do free swimming larvae provide for the echinoderms?

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

The fish shown above is a tarpon. it is a fast-swimming and powerful open-water fish. its closest relatives, oddly, are burrow-dwelling conger eels that stay on the bottom. both eels and tarpon developed from snake-like larvae that float in the plankton during the first stages of life. once they mature, tarpon and eels are not found near one another in the ocean. the tarpon and the eel illustrate all of the following except

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z