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Why do the cells produced by meiosis undergo two nuclear divisions but only have a haploid number of chromosomes?
Hominin
A member of the clade that includes humans as well as all species more closely related to humans than chimpanzees. Humans are the only surviving member of the hominin clade.
Precise Movements
Specific, deliberate, and carefully controlled physical actions executed by an organism or machine.
Homo Erectus
An extinct species of human that lived throughout most of the Pleistocene geological epoch, known for its upright walking ability.
Tool Use
The ability of an organism to use physical objects other than its own body parts as means to complete a task or solve a problem.
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