Answer:
A light microscope, particularly when the cell has indeed been spattered to disclose information, would've been ideal when examining a small living organism.
Explanation:
A light microscope is a laboratory biology instrument or device that uses transparent sensors to illuminate and exacerbate and enlarge, very small objects. Individuals use lenses to center light on the test sample, thereby amplifying it to produce an image. The experiment is usually located near the respective.
It does this by producing a magnified image using a series of glass lenses, which first focuses a laser light on or through an object, then conveys objective lenses to expand the created image.
C- repeated trials allow to assess the accuracy of data being received as an average can be taken. Also, precision can be assessed. The validity of the method, reliability, repeatability. All can be assessed
The right answer is the second one
I believe your answer would be Echinoderms and Chordates. I hope this helps!