Which type of cell contains dna enclosed in a nucleus?
a) centriole
b) eukaryote
c) plasmid
d) prokaryote

The correct answer is-

B) Eukaryote.

Eukaryotes ( with true nucleus) are those organisms that contain a well defined nucleus, which contains the genetic material ( DNA) of life forms. Also, they contain membrane bound sub-cellular compartments ( called as cell organelles) such as mitochondria, endoplasmic reticulum, golgi complex etc.

Example of eukaryotes- Plant and animal cell.

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.

i think that it is c, d, and e, hope this