Answer:
cell
Explanation:
cell is functioning and structural unit for all living organisms.. they have their own different functions
I think the answer you want is lysosomes
That it can send signals to diffrent people
Homologous structures hve same structure but perform different functions
analogus structures have diffrent structures but perform same function
Well the red blood cells ( erythrocytes) contain the oxygen carrying pigment known as haemoglobin. Hence RBCs carry oxygen to every cell ion the body.
The white blood cells ( leukocytes) form the cell mediated defence system of the body, they kill microbes and foreign particles either by phagocytosis or lysozymic reactions.
The platelets (thrombocytes) help in the blood clotting process.
This is my comparism of tne blood components.
Please mark me as brainliest.
