Final answer:
Plants with 'indeterminate' growth continue to grow throughout their life, while other plant parts have 'determinate' growth which stops when they reach a particular size.
Step-by-step explanation:
Plants with 'indeterminate' growth continue to grow throughout their life, with certain plant parts, such as stems and roots, exhibiting this type of growth. On the other hand, plant parts like leaves and flowers have 'determinate' growth, which ceases when they reach a specific size. Indeterminate growth is possible due to the presence of meristems, which are undifferentiated cells that can continue to divide and differentiate.