The sunflower plant and paddy plant are flowering plants. state one similarity and three differences between the two plants.

One similarity between the sunflower plant and paddy plant is that both of them have a non-woody stem. The three differences are; sunflower plant is a dicot, and has branching veins and taproots while paddy plant is a monocot, and has parallel veins and fibrous roots.

Explanation:

The paddy plant is a monocot (monocotyledon), where only one embryonic leaf (cotyledon) is present inside the seed coat. The monocots have a fibrous root system and their leaf veins are parallel. The sunflower plant is a dicot or dicotyledon, which contains two embryonic leaves inside the seed coat. The leaf veins of dicots are branched. They have taproots. Both the sunflower plant and paddy plant can be used as food. Both have a non-woody stem.