Unit 2- Requirements of Life
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| Organism | A living thing
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| Energy | All living things must be able to create and use energy
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| Sun | This is the primary energy source for living things on earth (directly or indirectly)
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| Water | Living things need this liquid to survive
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| Waste | The harmful leftovers from our metabolism that must be removed from the body.
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| Metabolism | The sum of all chemical reactions in an organism.
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| Cells | The building blocks of life, these make up all living things
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| Adjust | Living things must deal with changes in their environment
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| Adaptations | Traits that are inherited over long periods of time that help living things survive.
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| Stimulus / Stimuli | Information gathered by your senses and processed by your brain about your surroundings
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| Reproduction | All species of living things must reproduce in order to make sure their species survives.
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| Asexual reproduction | Reproduction involving only 1 parent organism
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| Sexual reproduction | Reproduction where two parent organisms combine their DNA
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| Life span | Organisms are born, grow and develop, age, and die.
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| Birth | The start of an organism's life span.
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| Growth | The process of physically getting bigger.
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| Development | The process of becoming more advanced and complex over time
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| Aging | The process of growing old- results in an organism's body or cells no longer working correctly
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| Death | The end of an organism's life span
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| Static | Something that stays the same
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| Dynamic | Something that changes
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| Equilibrium | Something that is balanced or equal
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| Homeostasis | Maintaining internal conditions at a constant level, even as conditions outside of the organism change (example: maintaining a specific internal temperature no matter how warm or cold it is outside)
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| Dynamic Equilibrium | Another word for homeostasis. It means something that changes as it stays the same.
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| EWWCARL | An acronym used to remember the 7 characteristics of living things
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| Locomotion | the ability to move from place to place. NOT a requirement of life!
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Mr. Helfrich
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