Question

complete the passage by filling in the blank(s). drag the word(s) the dropdown menus. after returning to the lab with the fossils, the researchers used radiocarbon dating to determine the age of the fossils. the results indicated they were approximately 40,000 years old. during that period in time, both lived in this region of italy. one of the fossils appeared to have a chin, indicating it may be a, but it also had prominent brow ridges which made it look like a. the samples were limited and not in good shape, so the researchers decided to extract, which would also tell them if the was a modern human or neanderthal. mtdna mother homos sapiens and homo habilis nuclear dna neanderthals homo sapiens and homo neanderthalensis neanderthal modern human relative dating father

Explanation:

• For the first blank, "Homo sapiens and Homo neanderthalensis" is correct as both species were around approximately 40,000 years ago.
• The second blank, "modern human" is indicated by the presence of a chin (a characteristic of Homo sapiens).
• The third blank, "Neanderthal" is due to the prominent brow ridges (a Neanderthal trait).
• The fourth blank, "nuclear DNA" is used for species identification (as mtDNA is more maternal - line specific and less informative for species - level differences in this context).
• The fifth blank, "fossil" is what they are trying to classify (whether it's a modern human or Neanderthal).

Answer:

Homo sapiens and Homo neanderthalensis, modern human, Neanderthal, nuclear DNA, fossil