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 Vocabulary List The Water Cycle: The change and movement of the Earth Ës water from liquid to vapor to solid. The water cycle is solar powered. Oceans: store most of the Earth Ës water. Over 70% of the Earth Ës surface is ocean; it contains 96.5% of the world Ës water supply. Evaporation: occurs when the sun heats water up and it becomes vapor in the air. Condensation is the opposite of evaporation; it occurs when air cools and the vapor collects into liquid form. Precipitation: is condensation falling onto land in the form of rain, sleet, hail, snow, and mist.