Which of these is an image of a on cellular organism

Coquina, a type of limestone, forms from shell fragments that settle on the ocean floor. what type of rock is coquina?

The picture showed normal blood cells which are around and sickle cells which appear much longer people with sickle-cell suffer from the sickle cell anemia which is inherited diseaseit is caused by a change in gene responsible for production of hemo goblin this type of change is known as an

Iwanna go do something with my ideas? ?