I'm guessing true, that's what my teacher says
X-ray crystallography, was the tool
<span>I would highly recommend that a researcher use the most powerful microscope available to thoroughly and aptly research planarians and to study their intricate reproductive system as well as their patterns (if any). There are a lot of unknowns when it comes to this organism. A powerful microscope would allow researchers to explore and to analyze to the point where the unknown is known.</span>
The answer for this should be articulation, but it could also be joint or arthrosis. All three pretty much mean the same thing.
I am new to biology but based on the looks of your attachment I would say that due to less things in the chain it would be easier to use them because they wouldnt have as long a process meaning they could produce more.