Name: Characteristics of Life Worksheet Identify the characteristic of life that is illustrated by each of the following statements. WORD BANK • • • • Made of Cells Reproduction Growth Obtain and Use Energy Development Responds to Stimuli Evolve/Adapt Maintain homeostasis • • • • 1. _______________________ “That boy shot up five inches in only one year.” 2. _______________________ “Our cat had a litter of kittens yesterday.” 3. _______________________ “My dog has become much less clumsy now that he is a year old.” 4. _______________________ “Eat a good breakfast and you will be able to run longer.” 5. _______________________ “When that car pulled in the driveway, my cat ran to hide under the porch.” 1 6. __________________ “That owl’s night vision allows it to see the movement of mice on even the darkest night.” 7. _______________________ “Single-celled organisms live in the pond behind school.” 8. _______________________ Your body normally maintains a temperature of 98.6OF. 9. Which of the following is a stimulus, which is a response? a) the recess bell ringing in an elementary school _________________ b) your mouth watering at the sight of food on a plate _________________ c) a sudden drop in air temperature _________________ d) a flu virus entering your body _________________ e) getting “butterflies” in your stomach before giving a speech. _________________ 2 10.Determine if each of the following describes a living or nonliving thing. a) rust eating a hole in a metal bucket __________ b) an apple on a tree c) bacteria _______________ d) lightning ______________ e) a dinosaur fossil f) a wasp * ______________ * * * ______________ ________________ * * * * * * * * Biology is: =_____________________________________________ Living Things are called: =_____________________________________________ List Characteristics of ALL LIVING THINGS 1. __________________________________________ 2. __________________________________________ 3. __________________________________________ 4. __________________________________________ 5. __________________________________________ 6. __________________________________________ 7. __________________________________________ 8. __________________________________________ 3 Modern science has changed the way people understand their world. In the past, the people of many societies thought that mountains, rivers, and forests were “alive.’ In much the same way that animals and plants are alive. Today, most people recognize a difference between living and non-living things. DIRECTIONS: Fill out the table below. Explain HOW each shows the characteristic of life IF it does. Feature of Life Dog Fast-moving stream made of cells? uses energy? responds and adjusts to changes? reproduces? grows and develops? 4 Life is organized into many levels. The simplest level at which life exists is the cell. Life is also organized on nonliving levels (below the cell) and levels above the organism. DIRECTIONS: Use your notes to arrange the following levels of organization in order for simplest to most complex: WORD BANK • • • • • Tissue Cell Organ Organism Organ System LEVELS OF ORGANIZATION: _______________ SIMPLE _______________ _______________ _______________ _______________ MOST COMPLEX 5 DIRECTIONS: Match each word to its definition _____ 1. Organ _____ 2. Cell _____ 3. Organ System _____ 4. Organelle _____ 5. Tissue _____ 6. Organism A. Basic unit of structure and function in an organism B. Group of similar cells that work together to perform a task C. A living thing that may be unicellular or multicellular D. Group of similar tissues working together like the heart or lungs E. Parts of a cell such as the nucleus 6