The hierarchical organisation of multicellular organisms consists of cells, tissues, organs, and organ systems.
Which row in the table below correctly identifies the level of organisation for each of the four structures?
| Erythrocyte | Blood | Artery | Circulatory system | |
|---|---|---|---|---|
| A | Cell | Tissue | Organ | Organ system |
| B | Cell | Cell | Tissue | Organ |
| C | Tissue | Tissue | Organ | Organ system |
| D | Cell | Tissue | Tissue | Organ system |
Row A
Row B
Row C
Row D
40 exam-style questions on OCR A A Level Biology Cell division, cell diversity and cellular organisation. Each one has a worked solution and a mark scheme showing where the marks go.