Examlex
It is thought that eukaryotes probably originated about:
Hired
Employed or engaged the services of an individual or entity for a specific job or task in exchange for compensation.
Tactful
Showing sensitivity and thoughtfulness in dealing with others, especially in difficult situations.
Mailing
The process of sending letters and packages through the postal service.
Envelope
A flat, typically rectangular container made of paper or another material, designed to enclose a letter or document.
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