Which is the primary consumer in this food chain?

Primary consumers are animals that eat primaryproducers; they are also called herbivores (plant-eaters). Secondary consumers eat primary consumers. They are carnivores (meat-eaters) and omnivores (animals that eat both animals and plants)

A primary consumer is a herbivore, or an consumer who eats autotrophs (primary producers) which are also known as plants. Hope this helps! :)

Were is the question

Amutation is basically the change in the gene, caused by alteration of single based units in the dna, or the genes or chromosomes were rearranged in the dna