An efficient hunting-gathering mode of subsistence among our ancestors

Which type of market produces the highest level of output at the lowest price to consumers?

Most galaxies in the universe are irregular-shaped galaxies. true or false ?

Which of the following statements proves that scientific knowledge changed due to the discovery of the fossil of a hadrosaur in north dakota? hadrosaurs were better runners than earlier thought. hadrosaurs had no pattern on their skin as expected. the length of the hadrosaur was shorter than previously thought. the muscular structure of hadrosaurs was less developed than expected.