Examlex
What is the name given to the polymers that can be melted and reshaped or heated and bent?
Human Evolution
The lengthy process of change by which people originated from apelike ancestors, involving developments in physical, social, and cultural traits.
Deuterostomes
A major division of the animal kingdom in which the anus develops from the first opening in the embryo, followed by the mouth.
Echinoderms
Marine animals characterized by radial symmetry and a unique water vascular system, which includes species such as sea stars, sea urchins, and sea cucumbers.
Embryonic Stages
Phases of development that an embryo goes through from fertilization to birth.
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