Hello ! everybody. Welcome to Biology.
Biology is life science. Biology is the study of living things. It encompasses the cellular basis of living things, the energy metabolism that underlies the activities of life, and the genetic basis for inheritance in organisms. Biology also includes the study of evolutionary relationships among organisms and the diversity of life on Earth. It considers the biology of microorganisms, plants, and animals, for example, and it brings together the structural and functional relationships that underlie their day-to-day activities. Biology draws on the sciences of chemistry and physics for its foundations and applies the laws of these disciplines to living things.
This course learn about Homeostasis in living thing. Your organ system do not work alone in your body. They must all be able to work together to maintain Homeostasis. For example when the men jumped into cold water, Their integumentary system (skin) , circulatory system, muscular system and nervous system worked quickly together to ensure the icy water did not cause harm to their bodies. One of the most important function of organ system is to provide cell whit oxygen and nutrients and to remove toxic wast product such as carbon dioxide. A number of organ systems, including cardiovascular and respiratory system all work together to do this. Another organs system work together such as endocrine system produces hormone to control growth. This course tries to answer the questions about in your body.
I want you to study in each chapter and to do worksheet by yourself. In final you must to do examination to check for understanding. I hope you to enjoy in this course. Good luck for you.....Bye !