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Science ch.1
Intro to living things
Term | Definition |
---|---|
What are the characteristics of all living things? | All living things have a cellular organization, contain similar chemicals, use energy, respond to their surroundings, grow and develop, and reproduce |
What is an organism? | living things |
What is a cell? | The basic unit of structure and function in every living thing |
What is a unicellular organism? | A single-celled organism |
What is a multicellular organism? | An organism with many cells |
What are the chemicals of life? | Water, carbohydrates, proteins, lipids, |
How do organisms get energy? | By taking in and breaking down materials |
What is metabolism? | how fast an organism can take in and break down materials |
What is a stimulus? | a change in an organisms surroundings |
What is a response? | an action a a change in behavior |
What is development? | a change producing a more complex organism |
What is growth? | becoming larger |
What is asexual reproduction | one parent, identical offspring |
What is sexual reproduction | two parents, offspring resembles |
Where do living things come from ? | They arise from other things through reproduction |
What is spontaneous generation? | The mistaken idea that living things can arise from other non-living things |
What is a controlled experiment? | When a scientist carries out a series of tests that are identical except for one factor? |
Who was Francesco Redi? | designed one of the first controlled experiments and showed that flies do not spontaneously arise from decaying meat |
Who w |