Examlex
The endosymbiotic theory proposes that over a billion years ago eukaryotic cells combined with each other giving rise to what are modern prokaryotic bacteria.
Age Cohort
A group of people who are born around the same time and share similar experiences or sociocultural influences throughout their lives.
Decade
A period of ten years.
Sexual Attractiveness
Qualities or characteristics of an individual that evoke a sexual interest or desire in others.
Aging
The biological and physiological changes that occur in an organism over time, leading to maturation and eventually the decline of bodily functions.
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