According to the passage, important inventions of the twentieth century

The primary purpose of the passage is to

The primary purpose of the passage is to

According to the passage, the hominid australopithecine most closely resembled a modern human with respect to which of the following characteristics?

The passage suggests that, in comparison with the hominid australopithecines, modern humans are

The passage suggests that proponents of the theory mentioned in highlight text assume that which of the following steps in human evolution occurred most recently?

Which of the following best describes the function of last sentence of the passage?

Which of the following can be inferred from the passage regarding the geologic changes that occurred during Ordovician period?

The passage is primarily concerned with

The primary purpose of the passage is to