Classification of Life

Warm Up What do you think a has in common with a ?

All living things…. 1.Are made up of cells.  Prokaryotes – organisms made of one cell  Eukaryotes – organisms made of many cells (maybe billions!) 2.Sense and respond to change.  Stimulus – a change that affects the activity of an organism o May be gravity, light, heat, chemicals, sounds, hunger, etc  Homeostasis – maintenance of a stable internal environment

All living things…. 3.Reproduce.  Asexual reproduction – making offspring by one parent; offspring are identical to parent.  Sexual reproduction – making offspring from two parents; offspring share characteristics of both parents. 4.Have DNA  Passed from parents to offspring  How traits are passed

All living things… 5.Use Energy.  They need energy to carry out the activities of life.  Metabolism – total of all chemical activities of an organism 6.Grow and develop  Every living thing starts as one cell.  How many cells do you have?

Living things need… Water – most cells are 70% water Food – provides energy, nutrients, and raw materials o Producers - make their own food o Consumers – eat other organisms for energy o Decomposers – get energy by breaking down dead organisms Air A place to live

Two Kingdoms of Bacteria Archaebacteria Eubacteria All bacteria… Are single celled prokaryotes that do not have a nucleus Are extremely small

The Other Four Kingdoms Protista Fungi Plantae Animalia All the organisms in these kingdoms are multicellular eukaryotes EXCEPT for Protista which includes prokaryotes AND eukaryotes