Nutrition Recommendations for Canadians

NUTRITION The study of the nutrients in foods and of the body’s handling of them.  This includes ingestion, digestion, absorption, transport, metabolism, interaction, storage, and excretion. FOOD Material containing nutrients taken into the body for the maintenance of life and the growth and repair of tissues. NUTRIENTS Substances obtained from food and used in the…

What is Physiology? Exercise physiology & Sports physiology

The study of the mechanisms by which the body functions Anatomy was the forerunner of physiology Study how our organ systems, tissues, cells, and molecules within cells work and how their functions are integrated to regulate our internal environments Exercise physiology The study of how our bodies’ structures and functions are altered when we are…

Evolution: Genetic Drift, Gene Flow, Mutations, Random Change

Random change Key factors that can cause evolution: –Small populations are more variable to changes in allele frequencies -non-random mating opportunities result in only those “preferred” traits being passed onto future populations –new alleles may be created when mutations occur (changes the frequencies of new and original alleles) -migration causes changes in the relative abundance…

Electricity around the House

–          Your home is one large electric circuit that is wired in parallel (multiple electron paths) –          Today we’re going to look at how electricity is delivered to your homes. HOW ELECTRICITY FLOWS TO YOU –          Electricity flows to every home through high-voltage wires.  The wires are either above ground and span over cities in…