Living Things Chapter 1 Notes

Characteristics of Life Movement Response Develop & Grow Reproduce Adjust (quick fix) Cells Use Energy Life Span Adapt (change over a long period of time) M – R – D – A – C – U – L –

Cellular Organization Living things are made of building blocks called cells. 1 cell = unicellular More than 1 cell = multi - cellular Cells -> tissues -> organs -> organ systems organisms Ex: student-> 6th grade-> etc…

Biogenesis Life comes from life Redi’s Experiments Pasteur’s Experiments Spontaneous Generation – when life comes from non-living things

4 Basic Needs of Life Food Water Shelter (living space) Homeostasis (stable internal conditions)

Classifying Organisms Classification is the process of grouping things based on their similarities. Classification makes it easier for scientists to study organisms. Taxonomy is the study of classification.

Taxonomy K – Kingdom P – Phylum C – Class O – Order F – Family G – Genus S – Species K – P – C – O – F – G – S -

Binomial Nomenclature Taxonomy involves the naming of organisms. The scientific name of any organism uses the categories genus and species. Carolus Linneaus is the “Father of Taxonomy” This is called binomial nomenclature (two name system) Example – Bison bison

Binomial Nomenclature Binomial nomenclature makes it easy for scientists to communicate about an organism because everyone uses the same scientific name. Example – page 19 in textbook

Binomial Nomenclature Binomial nomenclature is the two – name system used to identify organisms scientifically. Genus species Example – Felis leo

Levels of Classification K – Kingdom P – Phylum C – Class O – Order F – Family G – Genus S – Species K – Kings P – Play C – Chess O – On F – Fiber G – Glass S - Surfboards

Taxonomic Keys A taxonomic key is a guide to help identify similar organisms. Example – page 22 in textbook

Evolution & Classification