Vertebral column is derived from

In context with beryllium,which one of the following statements is incorrect?

If $\bar{a}, \bar{b}, \bar{c}$ are mutually perpendicular vectors having magnitudes $1, 2, 3$ respectively,then $[\bar{a}+\bar{b}+\bar{c} \quad \bar{b}-\bar{a} \quad \bar{c}] = $

Consider a car moving on a straight road with a speed of $100\, m/s$. The distance at which the car can be stopped is ........ $m$. (Take $g = 10\, m/s^2$ and $\mu_k = 0.5$)

The amphoteric hydroxide is

In the leaf,vascular bundles are found in the