Answer:
the electron microscope
Explanation:
The first strands of DNA were observed through the electron microscope.
The lymphatic system is to carry lymph nodes, lymph, and lymphatic vessels. However, it is not structured to carry blood along its way. The human's lymphatic system's function is to move the lymph from tissues to the bloodstream.
The source of the animals food
An eukaryotic cell has a nucleus while the prokaryotic cell doesn’t.
Answer:
I think it is B. medium tell me if I am wrong
