Question

in their study of fossils of the extinct arthropod mollisonia symmetrica, javier ortega - hernández, sarah losso, and team reported some obvious indications of m. symmetricas nervous system - for example, the animals primary nerve cord. they also saw signs of what might be a synganglion, a brain - like mass of nerve tissue, in the animals head. this evidence is exciting because it could help us better understand how m. symmetrica is related to other arthropods, such as cave crickets and krill. which choice best describes the function of the underlined portion in the text as a whole? a) it indicates that the teams claims about the m. symmetrica fossils are incorrect. b) it gives the definition of the term “synganglion” used earlier in the text. c) it explains why the teams finding of a possible synganglion is exciting. d) it states that krill are arthropods but cave crickets are not.

Explanation:

The question is about understanding the function of a part (synganglion) in relation to other arthropods like cave - crickets and krill as described in a text. It requires interpreting the meaning and significance of information in the text.

Answer:

No specific answer is provided in the question as it is a multiple - choice question without the actual text content to make a selection. However, the task is to analyze the options (A - D) based on the text's description of the function of the underlined portion related to arthropods.