Examlex
Sounds that make a critical difference in a language are referred to as __________.
Bipedalism
The ability to walk upright on two legs, a key trait in human evolution that distinguishes humans from most other primates.
Human Evolution
The lengthy process of change by which people originated from apelike ancestors, involving biological, physical, and genetic developments.
Incomplete Fossil Record
The partial preservation of organisms in the Earth's crust, which provides an incomplete view of the history of life.
Human Ancestors
Refers to species in the evolutionary lineage that led to modern humans, including various extinct hominins that share common traits and genetic material with Homo sapiens.
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