Final answer:
The plant shoot system, with its various specialized cells and tissues, exemplifies why plants are eukaryotic, multicellular, and photosynthetic: it indicates photosynthetic activity, houses essential eukaryotic organelles, and demonstrates cellular differentiation.
Step-by-step explanation:
The characteristics of the plant shoot system can explain why plants are eukaryotic, (mostly) multicellular, and photosynthetic. Most notably:
- The presence of specialized plant tissues such as those in the shoot system for photosynthesis supports the argument that plants are photosynthetic organisms.
- Eukaryotic features are displayed by plants due to the specialized functions of membrane-bound organelles, which are critical for cellular processes including the production of energy and proteins.
- Multicellularity is evident in the distinct cells that make up the shoot system of plants, which differentiate to fulfill various functions essential for plant growth and survival.
Therefore, choices A, B and C all support the understanding that plants are eukaryotic, multicellular, and photosynthetic.