Read the following statements.

I. The vegetative phase is of same duration in different organisms.

II. Clear-cut vegetative, reproductive and senescent phases can be observed in monocarpic plants.

III. Bambusa differs from Strobilanthes kunthiana (Neelakurinji) in the length of juvenile phase and being monocarpic.

IV. The end of juvenile/vegetative phase in angiosperms is seen when they come to flower.

V. Sexual mode of reproduction is present in most animals.

Which of the above statement is/are incorrect?