Question

Which tiny, round “factory” puts together protein and is often found in the endoplasmic reticulum?

Answer 1

In the cytoplasm, ribsomal RNA (rRNA), a type of RNA, and protein combine to form a nucleoprotein called a ribosome. The ribosome serves as the site and carries the enzymes necessary for protein synthesis. They are often takes the shape of small round particles attached in the endoplasmic reticulum. The ribosome attaches itself to m-RNA and provides the stabilizing structure to hold all substances in position as the protein is synthesized. Several ribosomes may be attached to a single RNA at any time.   

Answer 2

I believe that the answer is B , chloroplast. you can work out the problem any other wat too.

i hope this helps