SC-321
Cells, tissues, organs and systems
Lower Sec Science · Secondary 1 · Medium · Cells, tissues, organs and systems
A leaf is made up of many layers of cells working together to carry out photosynthesis and gas exchange. In terms of levels of organisation, how should a leaf be classified?
- It is a tissue because it is made of only one type of cell.
- It is a tissue because it performs only one function.
- It is an organ because it contains different tissues working together.
- It is an organ system because it contains many organs.
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