Which is the herbivore

A herbivore is an animal that eats only plants. The animal has special teeth that are normally flat used just for their adaptation to eating the plants.

Explanation:

the way I remember this is the word herb reminds me of a plant

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.