Question

To be a hominin you must have anatomy suitable for ____ and ____.

Answer 1

Hominins are characterized by anatomy suitable for bipedal locomotion and manipulating objects. Key features include evolved pelvis,

Step-by-step explanation:

To be a hominin, you must have anatomy suitable for bipedal locomotion and manipulating objects. The term hominin refers to members of the human family, which includes our species Homo sapiens and our close relatives and ancestors that are more closely related to us than to chimpanzees and bonobos. This group is characterized by two major adaptations that set them apart from other primates: bipedalism, the ability to walk on two feet, and advanced manual dexterity, which allows for tool use and other complex interactions with the environment.

Hominins exhibit an evolved pelvis, longer legs, and arched feet, which are indicative of upright walking. Yet, traits that classify hominins also extend to cranial features such as a brain size larger than 600 cc, reduced prognathism, and a round, globular skull. These complex morphological changes are considered a result of natural selection driven by advantages such as energy efficiency in locomotion, the ability to carry tools and offspring, and improved thermoregulation.

Furthermore, early hominins like Homo habilis had smaller jaws and teeth in comparison to their relatives, vital for the shift to a diet that required less heavy chewing. Their anatomy, including humanlike feet with arches and a gait similar to modern humans, further strengthens the definition of hominins, determining their classification and helping scientists explore our evolutionary past.

Answer 2

To be a hominin, you must have anatomy suitable for upright walking (bipedalism) and other characteristics that distinguish the human lineage.

Step-by-step explanation:

Hominins are a group within the family Hominidae that includes modern humans and their direct ancestors. One of the key features that define hominins is bipedalism, the ability to walk on two legs. Bipedalism is a significant adaptation that distinguishes hominins from other primates. Additionally, other anatomical characteristics, such as changes in the structure of the skull, dentition, and hands, are considered when identifying hominins. These features collectively represent the evolutionary traits associated with the human lineage.

In summary, being a hominin requires having anatomical features suitable for bipedalism and other distinctive characteristics that mark the evolutionary path leading to modern humans.