Question

cnidarians can detect and respond to stimuli equally from all directions. which of the following could be a reason for such response

Answer 1

Some jellyfish also have ocelli: light-sensitive organs that do not form images but which can detect light, and are used to determine up from down, responding to sunlight shining on the water's surface. These are generally pigment spot ocelli, which have some cells (not all) pigmented.

Answer 2

Cnidarians have nerve nets spread radially around the body