Examlex
In Canada,the two greatest epidemics affecting Aboriginal health were malaria in the sixteenth and seventeenth centuries,and HIV/AIDS which continues to be a major problem today.
Terrestrial Existence
Life forms or ecosystems that exist primarily or entirely on land, as opposed to aquatic or marine environments.
Adaptations
Adaptations are traits or behaviors that have evolved over time to allow an organism to better survive in its environment.
Radial Cleavage
A type of embryonic development in some animals where cell divisions occur parallel or perpendicular to the vertical axis of the embryo, contributing to its radial symmetry.
Deuterostomes
Animals characterized by the development of the anus from the first opening in the embryo, with the mouth forming later, including vertebrates and some invertebrates.
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