Tracheids differ from other tracheary elements in

Which type of cartilage is found at the ends of long bones?

Which of the following pairs is correctly matched?
$(i)$. Fungi - Regeneration
$(ii)$. Mosses - Fragmentation
$(iii)$. Planaria - Budding

Which one of the following conditions is incorrect for a well-behaved wave function $(\psi)$?

The major product of the following reaction is

If $-\frac{\pi}{4} < x < \frac{\pi}{4}$,then the general solution of the differential equation $\cos ^2 x \cdot \frac{d y}{d x}-(\tan 2 x) y=\cos ^4 x$ is