Closely related organisms pass through similar embryonic stages. The earlier the divergence of embryos occurs between two species, the more distant their most recent common ancestor, as with the vertebrate/insect gastrea example above
Answer: The scientist will perform another investigation in order to find out the role of certain genes in disease resistance.
Explanation-
As per the information given in the question, a mice having mutation in ear depicts same pattern of resistance when compared to another mice having normal ears. This indicates that the genes responsible for resistance are not related to genes that result in ear formation.
Therefore, to find out the effect of diet on disease resistance in rats, the scientist will perform another investigation in order to find out the role of certain genes in disease resistance.
Your answer would be A, plant cells have rigid walls and no centrioles.
Mitosis division occurs in body cell
