Of the following organelles, which group is involved in manufacturing substances needed by the cell?

ability to mate mark me brainliest

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?