Cell
thats quite easy it is a spetres
cell
part of an organism consisting of an aggregate of cells having a similar structure and function;
Vestigial StructureA vestigial structure is a structure that appears to no longer have a use in the body.
An adaptation is a structure or behavior that helps an organism meet its needs for survival.
Vestigial StructureA vestigial structure is a structure that appears to no longer have a use in the body.
Vestigial StructureA vestigial structure is a structure that appears to no longer have a use in the body.
A vestigial is an organ that serves no useful function in an organism.
Vestigial StructureA vestigial structure is a structure that appears to no longer have a use in the body.
A pump.
A cell is a small room, as in a convent or prison. In biology it is a usually microscopic structure containing nuclear and cytoplasmic material enclosed by a semipermeable membrane and, in plants, a cell wall; the basic structural unit of all organisms.
Histology
An organ is a structure that has a definite form and performs a definite function or functions within the body.
The cell.