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ISA4/ISC4

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
the maintenance of a stable internal environment   homeostasis  
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food broken down into organic molecules that can be absorbed and used by the body   digestive system  
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the process organisms use to convert light energy from the sun into chemical energy in organic molecules   photosynthesis  
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what protects us is our immune system, which can be divided into two parts, innate immunity and acquired immunity   immune system  
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nonspecific body defenses that work against a wide variety of potential pathogens. ex. skin, hair   innate immunity  
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a system of highly specific body defenses that recognize and react to very specific features of pathogens.   acquired immunity  
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lack of nucleus   prokaryotic cells  
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have a nucleus as well as other structures not present in prokaryotic cells   eukaryotic cells  
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egg and sperm, sperm fertilizes egg - implantation occurs 6 days after fertilization - amnion surrounds membrane and the placenta provides oxygen and nutrients to the developing embryo - 9 months of pregnancy (three trimesters)   human reproduction  
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are chemical messengers that give instructions to the body   hormones  
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seven characteristics - feeding, movement, breathing or respiration, excretion, growth sensitivity, and reproduction   characteristics of living things  
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