The group in which a star is classified according to its spectrum, especially using the Harvard classification.
Looking at the food chain & relationships between organisms can give you a good idea of theoretical cause and effects.
For example:
Starfish are the natural predators of the mussel. If the starfish, that eat the mussels, were to be taken out of the picture: there would most likely be a higher population of mussels.
Answer:
E: provide a meeting site for mRNA and tRNA
I believe it would be option A. If it still doesn't answer your question, don't hesitate comment below. :)
