#6

The oldest fossil remains of Homo sapiens found so far date from at least A) 6 million years ago. B) 1.6 million years ago. C) 180,000 years ago. D) 60,000 years ago. E) 16,000 years ago.  

With which of the following statements would a biologist be most inclined to agree? A) Humans and other apes represent divergent lines of evolution from a common ancestor. B) Humans represent the pinnacle of evolution and have escaped from being affected by natural selection. C) Humans evolved from chimpanzees. D) Humans and other apes are the result of disruptive selection in a species of chimpanzee.

According to the best available evidence, which of these hominin traits occurred before the others? A) tool use B) increased brain size C) symbolic thought D) language E) bipedalism

Primate evolution and behavior, such as hunting skills, have been directed in part by the development of depth perception. What anatomical change made depth perception possible? A) a larger brain B) the formation of compound eyes C) movement of the eyes to the front of the head D) diurnal activity

Wealth is usually more unequally distributed than earnings. This is mainly because:

Index the illustrated plane (a) in the tetragonal system and (b) in the unit cubic cell drawn below  

For the monoclinic system shown below, draw in the crystal direction: [123]  

The ideal participating group for a focus group is 6-12 individuals with similar characteristics but do not know each other well. 

Note: Show your calculations clearly on the paper and show your work clearly on the graph or else you will lose points! Given the phase diagram below: At 10 w.% Cu, indicate on the phase diagram what phases are present at 800 °C. At 10 w.% Cu, to the best of your ability, estimate the composition of all of the phases present at 800 °C Sketch the microstructures and write the names of the phases present at the numbered points.