Choose the best terms to complete these sentences.

All seed plants reproduce using
, which are tiny grains that develop into sperm cells.

When a sperm cell fertilizes an egg, a(n)
develops, which contains an embryo, stored food, and a protective coat.

pollen

seed

Explanation: The pollen is the sperm cell that fertilizes the “egg” aka the seed

the backbone of the dna and rna compound is sugar phosphate.

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.