Question at position 35 In hominins, bipedalism evolved as an adaptation to increased brain size.TrueFalse单项选择题
A
True
B
False

Question

Question at position 35 In hominins, bipedalism evolved as an adaptation to increased brain size.TrueFalse

BlackTom AI · Accepted Answer

The question presents a true/false statement about hominin evolution: whether bipedalism evolved as an adaptation to increased brain size.
Option 1: True. This claim would assert that the development of walking on two legs was driven by or directly linked to larger brain size. In the fossil record and comparative anatomies, bipedalism appears well before significant brain expansion in hominins, with early bipedal traits showing up in Australopithecus and other predecessors long prior to modern brain sizes. Therefore, this option misattributes the sequence of evolutionary changes and is not supported by the established timeline.
Option 2: False. This choice correctly reflects the widely accepted view that bipedalism arose primarily for ecological and locomotive reasons—such as energy-efficient terrestrial travel, freeing hands for using tools, thermoregulation, and navigating open savannas—before notable increases in brain size occurred. The brain expansion in hominins occurred later in the genus Homo, after bipedalism was already established, making this statement accurate.
In summary, the assertion that bipedalism evolved as an adaptation to an increased brain size is not consistent with current evolutionary evidence, which places the origin of bipedal walking earlier than major brain enlargement. Thus, the false option accurately captures the temporal order of these traits.

Question at position 35 In hominins, bipedalism evolved as an adaptation to increased brain size.TrueFalse单项选择题

类似问题

CHOOSE THE BEST ANSWER Of the characteristics listed below, which evolved first in the evolutionary history of humans, as evidenced by the fossil “Lucy” (Australopithecus afarensis)?

Question at position 8 In hominins, bipedalism evolved as an adaptation to increased brain size.TrueFalse

Question at position 14 In hominins, bipedalism evolved as an adaptation to increased brain size.TrueFalse

What is the earliest justified estimate of physical evidence of bipedalism in hominins?

Which of the following is an anatomical adaptation for bipedal locomotion?

The fossil individual nicknamed Lucy was

What is the savanna hypothesis?

The kind of bipedalism practiced by a living chimpanzee is called

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单