Thinking about how gene expression affects cellular differentation explain why a rabbit looks so kuch differnt as an adult compared to a single fertilized egg

Cell differentiation can be defined as a process in which the less specified cell is converted into the more specified cell. The cells at the embryonic stages is less specialized and during the process of development it becomes more specialized and this process is regulated by gene expression. The gene expression involves a specific group of genes which is expressed or suppressed, that decides the function of the cell.

A fertilized egg shows a single cell which is non-specialized that will become complex and will turn into a multicellular organism by cell differentiation.

This is the reason the adult rabbit looks so different from the single fertilized egg.

answer: dinosaur

explanation

their extinction was caused by massive asteroid that fell on earth

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.