The earliest hominid fossil, “Lucy,” is estimated to be 3.2 million years old. This early human-like species shares an important characteristic with modern humans: bipedalism. Which of the following would favor the selection of bipedal posture over walking on all fours? Bipedal posture allowed for greater mobility in the tree canopy. Bipedal posture allowed arms to be free to develop and use tools. Bipedal posture allowed for an increase in hominid brain and jaw size. Bipedal posture allowed a greater number of offspring to be produced in hominids.
Added by Kristina R.
Your feedback will help us improve your experience
Erin Bengiovanni and 55 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
The fossil known as Lucy is an Australopithecus afarensis. At the time her fossil was discovered, Lucy was famous for which one of the following? No other fossil early humans had been found in Africa Lucy was 40% complete and clearly showed upright walking Lucy showed evidence of evolution for walking on four legs Lucy is the only female early human fossil ever found
Sri K.
Which of the following statements about Australopithecus afarensis (Lucy's species) is TRUE? Select one: a. A. afarensis appears to have walked with a similar gait to modern humans b. In the year 2000, the skull of a 3-year-old A. afarensis known as 'The Taung Child' was recovered c. A. afarensis clearly did not use stone tools d. A. afarensis has a cranial capacity larger than that of modern humans
Adi S.
Match the fossil or feature to the earliest time period in which evidence for it has been found. Sahelanthropus tchadensis, Orrorin tugenensis, and Ardipithecus kadabba Ardipithecus ramidus, divergent great toe, strong heel Australopithecus afarensis and Kenyanthropus platyops First stone tools called Oldowan, no defined style, precision grip First bipedalism, first hominins Great toe in line next to other toes, double arch of foot, a rounded short pelvis Scavenging meat from carnivores' kills Robust australopithecines, also called Paranthropus Homo habilis and Australopithecus garhi Australopithecus africanus
Madhur L.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD