What is a main difference between primary succession and secondary succession? A. Primary succession happens slowly, and secondary succession happens rapidly.
B. Small plants grow first during primary succession, while large trees grow first during
secondary succession.
C. Primary succession occurs after a natural disaster, and secondary succession occurs
before a natural disaster.
D. Primary succession is the colonization of new sites, and secondary succession is
colonization of previously inhabited sites.

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.

do yall know the answer?

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.