Characteristics of Living Things What all organisms have in common

Characteristics of Living Things All ORGANISMS share common characteristics. Made of Cells Chemicals of Life (Genetic Material) Reproduce Grow and Develop Obtain and Use Energy Respond to their Environment Maintain Homeostasis As a group, Evolve

Vocabulary Organisms: a living thing Abiotic Biotic Non-living things in the environment Examples: water, soil, sunlight, oxygen, carbon dioxide May have some, but not all of the characteristics of living things Living Organisms: living things in the environment Have all of the characteristics of life

Made of Cells Cell: basic unit of structure and function in an organism Unicellular: made up of one cell (ex. Bacteria) Multicellular: many cells (ex. Human)

Chemicals of Life The cells of living things are all made of chemicals Cells are made up mostly of water

Reproduce Produce offspring that are similar to the parents Asexual (1 parent ) and sexual (2 parents) Make more of a species

Asexual

Sexual

Growth and Development Growth: the process of getting larger Development: a process of change that occurs throughout an organisms lifetime

Obtain and Use Energy Autotrophs Heterotroph “self-feeder” Organisms require energy to go through life’s processes Need energy for growth, repair and daily activities Autotrophs “self-feeder” Make and use own food Example: plants Heterotroph “other-feeders” Must get energy by eating autotrophs or other heterotrophs Examples: animals, mushrooms, slime molds

Energy

Respond to the Environment Stimulus: something that causes an organism to react Ex. Changes in light, temperature, light and sound Response: an action or change in behavior Ex. Movement, sweating, blinking

Homeostasis Maintaining stable internal condition Example: sweating to cool your body down Example: shivering to warm up Without homeostasis organisms will be sick or die

Evolution Evolution: A gradual change in a species overtime

Needs of Living Things Energy Water Living Space Stable internal Conditions (Homeostasis)

Vocab Transportation: Movement of materials Excretion: removal of waste materials from a cell (urine, sweat) Metabolism: all chemical reactions in an organism Nutrition: body takes in and uses food Synthesis: combinations of parts to make a whole

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