Examlex
Each HIV particle possesses a ________ on its surface,called gp120,that precisely binds to a protein,called CD4,that is found on the surfaces of the immune system cells called macrophages and T cells.
Scavenging
The act of searching for and collecting food or resources by animals, including humans, from waste or dead organisms.
Atapuerca
An archaeological site in Spain known for its significant prehistoric human fossils and artifacts.
Homo Erectus
An extinct species of hominid that lived throughout most of the Pleistocene geological epoch, known for being one of the first hominins to exhibit modern human-like body proportions and behavior.
Homo Sapiens
The species name for modern humans, characterized by a capacity for complex language, symbolic thought, and social organization.
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