Describe in detail the theories aiming to explain the adaptive success of bipedal locomotion

Someone pleas asap so what you have to do is for each article you have to find the 1) key ideas an d 2) the key quote that's it. ( attached a link to the fille)

The united states economy is one in which producers are generally free to produce what they want and consumers are free to purchase what they desire, so long as no laws are broken. at the same time, however, the government does regulate some aspects of the economy. the u.s. can best be described as which of the following a mixed economy b liberated economy c command economy d market economy

Which of the following do scientists believe about homo sapiens?