It is either homologous structures or homozygous structures.

Embryological structures are when different species of animals look similar in the earliest stage of development and Analogous structures are when animals look different but their function is basically the same.

So just look up homologous structures and homozygous structures in your Bio book!!

Homologous structures.

homologus structures

Homologous

The cell structures is found in protoplasm. It is what helps the cells function.