BIOL 1001 Chapter : Chapter One
Document Summary
Biology notes: what is the science of biology, the study of life, what are the characteristics of living things, their structure is complex and organized. Salt; organized but simple: oceans; complex but unorganized, water flea; organized and complex, they acquire materials &energy from their surrounding environment. Plants utilize co2 and sunlight to make sugars: animals eat plants to obtain sugars for energy, they work hard to maintain their internal conditions, organized systems disintegrate, homeostasis means staying the same . Feeling thirsty when water is low: homeostasis requires energy, opposes natural trend to disintegration, obtained from external source, homeostasis requires physical repair. Parts break down: new materials required for repair. Extension of homeostasis: homeostasis = staying the same, growth = homeostasis plus extra, organism grows in size/mass, must acquire more than needed for homeostasis, genetically programmed. Seek food and water: avoid bitterness, reproduction. Plants grow towards light: reproduce themselves in kind (heredity)
