If the amplitude of $z-2-3i$ is $\frac{\pi}{4}$,then the locus of $z=x+iy$ is:

$A$ non-uniformly shaped conductor is charged. Then,at its sharpest point:

The events $A$ and $B$ have probabilities $0.25$ and $0.50$,respectively. The probability that both $A$ and $B$ occur simultaneously is $0.14$. Then,the probability that neither $A$ nor $B$ occurs is:

In Earthworm,the dorsal wall of the intestine from the $26^{th}$ segment to the $95^{th}$ segment forms a median internal fold called:

Which organisms obtain nutrition through both photosynthesis and absorption?

It includes multicellular,aquatic or terrestrial,photosynthetic eukaryotic organisms.