This goes with my other question

C) grass--> grasshopper --> frog --> snake --> hawk

Explanation:

grass hopper eat grass

frogs eat insects

snakes eat small rodents and frogs

hawks eat snakes

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs