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Midterm les. 1,2,3,4

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Term
Definition
organism   living thing  
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chlorophyll   is able to use energy from sunlight  
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unicellular   or one-celled, organism is made of a single cell that carries out basic life processes  
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multicellular   or many-celled, organisms that are made of more than one cell  
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cell   is the smallest unit of living things that can carry out basic life processes 1  
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tissue   similar cells working together to do the same job, or function 2  
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organ   a group of tissues that work together to perform a specific function 3  
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organ system   organs that work together to perform a certain function 4  
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classification   has been called the science of finding patterns  
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kingdom   the broadest group an organism can be classified into  
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species   the narrowest group an organism can be classified into  
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vertebrete   animal with a backbone  
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invertebrete   animal without backbone  
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vascular   means "contains tubes or vessels"  
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nonvascular   do not have vascular tissue  
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gymnosperm   is a seed plant that does not produce flowers  
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angiosperm   is a seed plant that produces flowers  
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xylem   is a series of tubes that moves water and minerals up the stem  
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phloem   moves sugars made in the plant's leaves to other parts of the plant  
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cambium   the layer that the xylem and phloem are separated by  
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photosynthesis   the process of making food  
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transpiration   the loss of water through a plant's leaves  
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cellular respiration   energy is released when cells use oxygen to break down sugars  
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asymmetrical   cannot be divided into mirror images  
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radial symmetry   is a body plan when all parts of an organism can be arranged around a central point  
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bilateral symmetry   is a body plan that can be divided along one plane, two mirror images  
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monotreme   mammal that lays eggs  
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marsupial   a pouched mammal  
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placental mammal   when the young of a mammal develops inside its mother  
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Created by: lrandolph2002
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