In 1974 an almost complete skeleton of Australopithecus afarensis was found in Africa. The fossil was called "Lucy." Lucy had apelike shoulders and forelimbs. However, the pelvis indicates that she was bipedal. The size of her brain was small, an apelike characteristic. What did the study of Lucy help paleoanthropologists determine? Select TWO correct answers.

A. Hominids had large brains before they walked upright.

B. Hominids walked upright before they had large brains.

C. Hominids are primates with opposable thumbs.

D. Human characteristics evolved at different rates and, therefore, at different times.

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

i hope this : )

1. what is the relationship between the shape of an enzyme and the reactions they catalyze?

2. how does an enzyme inhibitor work?

separate your answers so i dont get confused : )

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully