Examlex
In the Bohr model of the hydrogen atom, an electron can exist between orbits.
Lanugo
Fine, soft hair, especially that which covers the body and limbs of a human fetus or newborn.
Notochords
A flexible rod-shaped structure that provides support in all embryonic and some adult chordate animals.
Vertebrae
(vertebrae) (sing., vertebra) The bones that make up the spine.
Hagfishes
Jawless marine fishes belonging to the class Myxini, known for their ability to produce slime as a defense mechanism.
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