User: Many animals have body symmetry with distinct front and back ends. This type of symmetry is A. unilateral symmetry.
Cumulonimbus, from the Latin cumulus (heap) and nimbus (rainstorm, storm cloud), is a dense towering vertical cloud associated with thunderstorms and atmospheric instability, forming from water vapor carried by powerful upward air currents.
Top 10 facts about the world. A cumulonimbus cloud is one of the largest clouds formed in Earth's weather patterns. The tall, column-like appearance, often with a flat top, can indicate severe lightning, heavy rain and high winds. super cell thunderstorm is a mature cumulonimbus cloud with internal rotation, called a mesocyclone. Air moving in different directions at different altitudes causes the super cell to rotate, which can cause tornadoes or severe winds.