CHARACTERISTICS OF LIVING THINGS Organisms CHARACTERISTICS OF LIVING

CHARACTERISTICS OF LIVING THINGS (Organisms)

CHARACTERISTICS OF LIVING THINGS Are made up of cells Unicellular – organisms that are made of only Unicellular one cell Multicellular – organisms that are made of Multicellular more than one cell Colonial – unicellular organisms that live in a Colonial group

CHARACTERISTICS OF LIVING THINGS • Basic chemical ingredients • Nucleic acids - DNA

CHARACTERISTICS OF LIVING THINGS Reproduce to produce new organisms Sexual reproduction – two cells from different reproduction individuals combine to form the first cells of a new organism Asexual reproduction – all or part of the reproduction organism is used to make a new organism

CHARACTERISTICS OF LIVING THINGS Growth, Development and Aging Growth – some cells get larger and other new Growth cells are added Development – cells and body parts become Development specialized for certain jobs Aging – cells and body parts become damaged Aging and cannot be repaired

CHARACTERISTICS OF LIVING THINGS Obtain and Use Energy from Environment Anabolism – process of making complex substances from simpler substances Catabolism – breaking down complex Catabolism substances into simpler substances Metabolism – sum of all of the anabolism Metabolism and catabolism of an organism

CHARACTERISTICS OF LIVING THINGS Obtain and Use Energy from Environment Autotroph – organism that can make its Autotroph own food from it’s environment Heterotroph – organism that has to Heterotroph obtain its energy from another organism

CHARACTERISTICS OF LIVING THINGS Respond to the Environment Stimulus – anything in the environment that Stimulus causes a reaction from an organism Reflex – automatic response to a stimulus Reflex Behavior – learned or inherited response to Behavior a stimulus

CHARACTERISTICS OF LIVING THINGS Respond to the Environment (continued) Homeostasis – an organism’s response Homeostasis to the environment that keep conditions suitable for life

CHARACTERISTICS OF LIVING THINGS Produces Waste