Examlex
The first metal used by humans appears to have been ____________________.
Nucleoli
Structures within the nucleus of a cell, involved in ribosomal RNA synthesis and ribosome assembly.
Organelles
Specialized structures within a cell that perform a specific function, such as mitochondria, chloroplasts, and the nucleus.
Cell Function
The specific role or activity of a cell within an organism or a cellular system.
Rough ER
A form of endoplasmic reticulum that is studded with ribosomes and involved in protein synthesis.
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