Examlex
Universal service may require making a service available in small communities where the limited scale of operations may make costs extremely high.
Insectivora
An obsolete term for an order of mammals, now split into various orders, that are characterized by feeding on insects and other small invertebrates.
Closed Circulatory System
A circulatory system where blood is contained within vessels and is separated from bodily tissues, as seen in vertebrates.
Dorsal Heart
A dorsal heart is a heart that is located towards the back (dorsal) side of an organism, contrasting with the ventral placement seen in humans.
Hemoglobin
A molecule found in red blood cells that carries oxygen from the lungs to all parts of the body.
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