Characteristics of Life PDF

THE CHARACTERISTICS OF LIFE All living things share the same characteristics of life whether they are small and simple….. ….or large and complex. Whether they look familiar to us….. ….or not. Whether they inhabit the land…...

THE CHARACTERISTICS OF LIFE All living things share the same characteristics of life whether they are small and simple….. ….or large and complex. Whether they look familiar to us….. ….or not. Whether they inhabit the land… ….or the water.  amoeba paramecium euglena bacterium All living things are made up of cell(s). cardiac cells cheek cells leaf cells onion cells CELL THEORY states 1) Living things are made up of ____ one or _____ more cells. unicellular multicellular 2) All cells come from __________ pre-existing cells. 3) The cell is the basic unit of ___ life. All living things reproduce.  The main PURPOSE of reproduction is to produce offspring which ensures genetic ________ ______ continuity from generation to generation. There are two MAIN TYPES of reproduction: sperm and ____ a) The type involving ______ egg is called sexual ______ reproduction. b) The duplication of an identical cell asexual c) is called _______ reproduction.  Genetic information comes in the form of a molecule DNA called ____ which stands for deoxyribonucleic acid ___________________. Viruses also contain genetic information in the form of DNA RNA (in retroviruses). DNA or ____ However, viruses do not exhibit some of the other characteristics of life, and are therefore classified as non-living ________. All living things acquire and use energy.  Two Major Methods of Acquiring Energy 1. Some organisms called autotrophs can MAKE their __________ own glucose using a green chlorophyll pigment called __________ along with the energy found in sunlight _______ in a process photosynthesis called _____________. 2. Some organisms called heterotrophs CANNOT ____________ make their own glucose. They must consume ________ other organisms for energy.  chemical reactions Energy usage is made possible by ________________ taking place in the cells of an organism. The sum of these chemical reactions is called an metabolism organism’s __________ All living things grow and develop.  For a unicellular organism to grow and develop, it must cytoplasm which involves increase the volume of its _________, gaining more cytosol ______ (the liquid). For a multicellular organism to grow and develop, it division and ____________ must undergo cell _______ specialization. cell growth Cells specialize into different types of tissues. and division All living things have levels of organization. atom organ system molecule macro- organism molecule organ organelle cell tissues  summer winter All living things respond to their water environment. goldenrod goldenrod gall goldenrod goldenrod gall fly larvae gall fly  changes (stimuli) in their All living things respond to _______ environment. These changes may be in their external _______ environment or their internal environment. _______ Insulin Response This response to change brings the organism back to homeostasis which is a ________ equilibrium or ___________ constant internal state or state of balance.  whale evolution All living things adapt and evolve over time.  Charles Darwin came The British naturalist named _____________ evolution which he called up with a mechanism for ________ natural selection ______________. mutations in Due to random _________ DNA, individuals will differ in genetically determined traits. Individuals with traits or adaptations __________ that allow them to SURVIVE and REPRODUCE better than others are said to fitness. have more ______  Characteristics of All Living Things Can You list Them? 1) Made up of one or more cells 2) Reproduce 3) Acquire and use energy 4) Respond to their environment 5) Grow and develop 6) Have levels of organization 7) Adapt to their environment, evolve over time Bonus Question: Are viruses alive?