Ascientist is studying the action of rna polymerase during transcription. he wants to know what type of bases are added to the growing mrna by rna polymerase.
a: bases complementaryto the template dna
b: bases the same as those in the template
c: bases similar to the template dna

1. dermis

2. chemical

3. urine

4. viruses

5. antibodies

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.