Examlex
Isotopes of the same element always have the same number of neutrons.
Scraper
A tool, typically with a sharp edge, used to remove unwanted matter from surfaces.
Ray-finned Fishes
A diverse group of fishes characterized by fins supported by long, bony rods arranged in a ray pattern.
Amphibians
A class of cold-blooded vertebrates that live both in water and on land at different life stages, including frogs, toads, salamanders, and newts.
Homo Erectus
An extinct species of early human that lived throughout much of the Pleistocene geological epoch, known for their upright stance.
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