This image is of a human embryo. it took many weeks of development to get to this stage. prior to this, all of the human cells were not differentiated, and the organism would have simply looked like a grouping of all the same type of cells. what is the name given to the type of cells in humans that are not differentiated?

Which of the following types of stars is most likely to end up as a supernova? in graph a, the curve peaks at 800 nm, in the red section of the visible light spectrum. in graph b, the curve peaks at 550 nm, in the green section of the visible light spectrum. in graph c, the curve peaks at 450 nm, in the blue section of the visible light spectrum. in graph d, the curve peaks at 300 nm, in the violet section of the visible light spectrum. a b c d