Question

at the museum of natural history in washington, dc, a single specimen of the planktonic marine organism b. pumilio is preserved as the reference organism for the species. this specimen is a holotype, meaning it was the basis of the first formal scientific description of b. pumilio. —— the reference organism for the planktonic g. inflata, preserved at the natural history museum in london, is a neotype, meaning it acts as a reference organism but is not the exact specimen originally described. which choice completes the text with the most logical transition? a by contrast, b moreover, c admittedly, d for instance,

Explanation:

The text is comparing two different reference - organism situations. "By contrast" is used to show a difference between the holotype in Washington and the neotype in London. "Moreover" is for adding more information, "Admittedly" is for conceding a point, and "For instance" is for giving an example. Here, a contrast in the nature of the reference organisms is being presented.

Answer:

A. By contrast