Every meridian of longitude on Earth crosses the Antarctic Circle, the Arctic Circle, and every other parallel of latitude on Earth.
They don't. The Arctic and Antarctic Circles are parallel. Each circle has only a single latitude. The first is at 66.5° north latitude, 23.5° from the north pole. The second is at 66.5° south latitude, 23.5° from the south pole. They're 133° apart everywhere, and never meet.
The parallel latitude that circumscribes the polar tundra zone is the Arctic Circle in the Northern Hemisphere and the Antarctic Circle in the Southern Hemisphere. These latitudes mark the boundaries of the tundra biome, characterized by cold temperatures and a lack of trees due to permafrost.
Latitude maps include both the Arctic and Antarctic Circles.
The Tropic of Cancer is a parallel, because it is one of the earths parallel lines.
The parallel of latitude that circumscribes the polar tundra zone is the Arctic Circle in the northern hemisphere and the Antarctic Circle in the southern hemisphere. These circles mark the boundary where the tundra biome transitions into the polar ice caps.
The Antarctic Circle is parallel to the Arctic Circle, as they both mark the latitudes at approximately 66.5 degrees north and south, respectively. These circles denote the points where the sun does not set on the summer solstice and does not rise on the winter solstice.
Lines of latitude are parallel to the equator, and that includes the Arctic and Antarctic Circles. The Tropics of Cancer and Capricorn are also parallel to the equator.See the link below
Well one line of latitude is called the 'equator'.
The parallel of latitude that runs 66° 33′ 44″ (or 66.5622°) north of the Equator.
That's close to an approximate latitude for the Antarctic Circle.
The imaginary line located at 66.5 degrees south latitude is called the Antarctic Circle. This is the southernmost latitude at which the sun can remain continuously above or below the horizon for 24 hours during the summer and winter solstices, respectively. It marks the boundary of the Antarctic region.