Marchantia is an example of.

The equation of the locus of $z$ such that $\left|\frac{z-i}{z+i}\right|=2$,where $z=x+iy$ is a complex number,is

From which of the following can a milk-like substance be prepared?

The values of $t$ such that the matrix $\begin{bmatrix} 1 & 3 & 2 \\ 2 & 5 & t \\ 4 & 7-t & -6 \end{bmatrix}$ has no inverse,are

If the function $f(x) = 2x^3 - 9ax^2 + 12a^2x + 1$,where $a > 0$,attains its maximum and minimum values at $p$ and $q$ respectively,such that $p^2 = q$,then what is the value of $a$?

Name the method of asexual reproduction in lichens.