Question

118 Critical Thinking keletal evidence th a t is of human ago. Although Neanderthal and modern human there are marked differences in the anatom ans can be traced to about 130,000 years a DNA is estimated to differ by only 0.3 t one Observe the modern and Neander and greater V reater overall volume Neanderthal skulls below. Note the Neanderthal's larger Home Spens Hona handerthalensis 1. Which "keystone" bone of the ne bone of the face is significantly longer than that of modern humans! Neanderthals, which cranial bone determines the low-profile forehead with the exceptionally large browridge? 3. Name the bone which literally translates back of the head". How does this bone in Neanderthals differ from its modern counterpart? 4. In males, Neanderthal cranial volume was about 1450 cubic centimeters (cc). That ot modern human males averages about 1345 cc. Thus, the brain of Neanderthals is considered to be larger. Brain size, however, is relative to body size, constituting 2% of body weight Given an average Neanderthal male body weight of 77.6 kg (170.7 lb) and an average modern male weight of 72.7 kg (159.9 1b), was the Neanderthal brain significantly larger relative sense? (Hint: Calculate the percent difference for cranial volume and for body weight and compare those percentages.) Modern weight is based on a mesomorph -- a person who is neither too thin or too fat -of average height: 175.3 cm (59

HELPP!!

Answer 1

1. Sphenoid bone

2. Frontal bone

3. Occipital bone. In neanderthal men, the back of skull had a bulge called the occipital bun and a depression called the suprainiac fossa for the attachment of strong neck muscles. These structures are absent in modern men.

4.

From the above calculations, we find that the percentage difference in cranial volume is greater than the percentage difference in their body weights. Hence, yes the neanderthal man had larger brain size as compared to modern man.

Hope this helps:)

Please do give it a thumbs up.

Thank you!