Examlex
Briefly explain the contribution of the woman's ovum and the man's sperm in determining the sex of the offspring.
Genetic Variation
The diversity in gene frequencies within a population, which is the raw material for evolution by natural selection.
Colder Regions
Geographic areas characterized by low temperatures, often leading to specific adaptations in living organisms and human societies.
Sickle-Cell Anemia
A genetic blood disorder that causes red blood cells to assume a sickle shape, leading to various health complications.
Adaptive
Characterized by or showing the ability to change or adjust effectively to different conditions or environments.
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