Examlex
A law summarizes a relationship that does not yet exist in nature.
Echinoderms
A phylum of marine animals characterized by radial symmetry and a unique water vascular system, including starfish and sea urchins.
Amphibians
Cold-blooded vertebrates that can live both in water and on land, such as frogs, toads, salamanders, and newts.
Mesoderm
The middle layer of an embryo in early development, which gives rise to muscles, bones, and other related structures.
Pituitary Gland
A small, pea-sized gland located at the base of the brain, responsible for the production and secretion of hormones that regulate many bodily functions.
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