Question

a. hominoid b. hominid c. hominin

1. the human line after it split from ancestral chimpanzees

a. hominoid b. hominid c. hominin

1. the age of the australopithecus afarensis hominid skeleton fossil (\lucy\) is

a. 300 years old b. 3,000 years old c. 300,000 years old d. 3 million years old

1. the feature that the australopithecus afarensis hominid skeleton fossil (\lucy\) had

that was more like humans was:
a. bi - pedalism b. stone tools c. fire - making d. large brain

1. from the australopithecus afarensis (\lucy\) fossil, what we now know about human

evolution is that
a. humans were bipedal before they developed large brains
b. humans were bipedal after they developed large brains
c. humans were bipedal before they developed small brains
d. humans were bipedal after they developed small brains

Explanation:

1. Hominins are the group that includes modern humans and all species after the split from the chimpanzee/bonobo lineage.
2. The Lucy fossil (Australopithecus afarensis) is dated to approximately 3.2 million years old, closest to the 3 million year old option.
3. Lucy's skeleton showed clear adaptations for bipedal walking, a key human-like trait, while she did not use stone tools/fire and had a small brain.
4. Lucy's bipedal anatomy paired with her small brain demonstrates that bipedalism evolved before large brains in human lineage.

Answer:

1. C. Hominin
2. D. 3 million years old
3. A. bi-pedalism
4. A. humans were bipedal before they developed large brains