Hi.
From my own knowledge, I remember that anorexia nervosa<em /><em> </em>matches what Jennifer is suffering from.
Cheers~
Answer: Cell
Explanation:
The cell is the structural and functional unit of life. It is the the most basic level. A life starts from a single cell.
When a male and female gamete(germ cell) fuse together they form zygote. Firstly it is a single cell surviving inside the mother's womb.
Then differentiation takes place and the cell keeps on dividing to form different tissue layers and then organs form which makes a complete baby. Hence, zygote and germ cell are cellular level of organization.
100% shore its B hope that helps you good luck
This would be the organ. The order of all would be organelle, cell, tissue, organ, organ system, organism.