Anatomy of Flowering Plants (Class XI)

Which of the following statements is/are false?

a. A cell is a group of tissues having a common origin and generally performing a common function.
b. Within angiosperms, the monocots and dicots are seen to be anatomically different.
c. During the formation of the primary plant body, specific regions of the apical meristem produce dermal tissues, ground tissues and vascular tissues.