The answer is the cytoplasm.
I hope this helps!
I think the solution turns purple
trees do not fix N2 from air they fix oxygen with the help of N2 fixing bacteria . so trees do not fix N2
I think the correct answer from the choices listed above is option D. Human height is determined by several genes located on different chromosomes which is an example of a polygenic trait. These traits are being controlled by more than one gene. Hope this answers the question.