PLEASE HELP Photosynthesis involves oxidation - reduction and the movement of electrons from one molecule to another. Recall what oxidation and reduction reactions are and study the figure to identify A and B as either oxidation or reduction.

Ahypothesis that has been tested again and again , with similar results each time may become a law , true or false

Below, the levels of organization in a multicellular organism are shown from least to most complex. which level of organization can be described as several different types of tissues working together to perform a common task?

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