Final answer:
Mendel identified several dominant traits in his experiments with pea plants, including flower color, seed color, pod texture, and stem length.
Step-by-step explanation:
Mendel's experiments with pea plants revealed several dominant traits. In terms of flower color, purple flowers were dominant over white flowers. In terms of seed color, yellow seeds were dominant over green seeds. Additionally, smooth pods were dominant over bumpy pods, and short stems were dominant over long stems.