Mr. Skirbst Life Science Topic 03 Living Things Mr. Skirbst Life Science Topic 03
Living Things * All living things (on Earth) share similar characteristics
6 Characteristics of Living Things 1. Made of cells
6 Characteristics of Living Things Made of cells Ability to move
6 Characteristics of Living Things Made of cells Ability to move Perform complex chemical activities (ingestion, digestion, respiration, excretion)
6 Characteristics of Living Things Made of cells Ability to move Complex chemical activities Grow and develop
6 Characteristics of Living Things Made of cells Ability to move Complex chemical activities Grow and develop Respond to stimulus
6 Characteristics of Living Things Made of cells Ability to move Complex chemical activities Grow and develop Respond to stimulus Reproduce
Origins of Life Spontaneous Generation Theory - stated that living things came from non-living matter, all by itself
Origins of Life Francesco Redi (Italy, 1668)
Origins of Life Francesco Redi (Italy, 1668) - disproved theory with his famous experiment (meat & flies)
Origins of Life Francesco Redi He showed that “living things do NOT come from non-living matter.”
Origins of Life Francesco Redi He showed that “living things do NOT come from non-living matter.” “Living things come from living things.”
6 Basic Needs of Living Things Energy primary source is the sun
6 Basic Needs of Living Things Energy Food (provides chemical nutrients)
6 Basic Needs of Living Things Energy Food Water (allows chemical activities to occur)
6 Basic Needs of Living Things Energy Food Water Oxygen (from air or water)
6 Basic Needs of Living Things Energy Food Water Oxygen Living Space (competition for resources)
6 Basic Needs of Living Things Energy Food Water Oxygen Living Space Temperature
Testing for Life Can soil from another planet be tested for life?