Which evidence from the sea floor shows that tectonic plates move ? a) The sea floor is much older than any of the continents. b) The sea floor is youngest near a mid-ocean ridge and older farther away. c) Mid-Ocean ridges circle Eqarth like seams in a baseball d) The sea floor is thinner than continental crust.
The trachea, colloquially called the windpipe, is a tube that connects the pharynx and larynx to the lungs, allowing the passage of air, and so is present in almost all air-breathing animals with lungs.he trachea is lined with a layer of pseudostratified columnar epithelium, a type of epithelium. The epithelium contains goblet cells, which are glandular, modified simple columnar epithelial cells that produce mucins, the main component of mucus. Mucus helps to moisten and protect the airways.
Adorable animal families that will make you aww. The windpipe, also known as the trachea, is a part of the respiratory tract through which air passes from the nose or mouth to the lungs. It is membranous and flexible, but its walls contain a number of rings of cartilage that protect it from injury and collapse. The trachea is connected to the larynx above it, and below it are the primary bronchi, which branch from the windpipe to the lungs.