The table below shows some of the levels of organisation within multicellular organisms.
Complete the table by inserting a tick (✓\checkmark✓) to show the level of organisation of each example. The first one has been done for you.
| Example | Organelle | Cell | Tissue | Organ |
|---|---|---|---|---|
| lysosome | ✓\checkmark✓ | |||
| phloem | ||||
| lymphocyte | ||||
| brain | ||||
| nucleolus |
Place the following biological structures in order of size from the smallest to the largest:
livermitochondrionhuman egg cellribosomethyroid gland \text{liver} \qquad \text{mitochondrion} \qquad \text{human egg cell} \qquad \text{ribosome} \qquad \text{thyroid gland} livermitochondrionhuman egg cellribosomethyroid gland| Order | Structure |
|---|---|
| smallest | 1. ____________________ |
| 2. ____________________ | |
| 3. ____________________ | |
| 4. ____________________ | |
| largest | 5. ____________________ |
3 exam-style questions on Edexcel IGCSE Biology Level of organisation. Each one has a worked solution and a mark scheme showing where the marks go.