slide 1 of 5. A polygenic trait, is a trait that nonallelic genes control. These traits result from one or more genes contributing to the phenotype. An individual's physical appearance is determined by chromosomal inheritance and genotypic ratio. This phenomenon is known as Mendel's Laws of Inheritance.
, cycle. Water molecules continuously move from location to location in this cycle. The water cycle is important to weather and climate and, ultimately, to all life on Earth. The water cycle is driven primarily by the energy from the sun. This solar energy drives the cycle by evaporating water from the oceans, lakes, rivers, and even the soil. Other water moves from plants to the atmosphere through the process of transpiration.
The Water Cycle. The water cycle is a cycle that describes the use, storage, and recycling process of water on Earth. It is arguably the most important of all the cycles because the way water is spread across the globe and redistributed is critical to life on our planet. A very basic explanation of the water cycle is that the majority of water is stored in our oceans. With added energy from the sun, much of that liquid water turns into gas, or water vapor, and is absorbed by the atmosphere in a process called evaporation.