If you observed green material on the surface of a pond, how could you determine whether it belonged to Kingdom Protista or Kingdom Eubacteria? Protists have organized nuclei while bacteria do not. There is no way to tell the organisms apart. Bacteria have an organized nuclei while protists do not. Eubacteria do not live in the water.

What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?

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

Which statement correctly describes other ways in which nebulae and stars are different? a. a star always has a higher density than a nebula. b. stars can form inside a nebula but a nebula can never be produced by any star. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star. reset submit