ISA4/ISC4
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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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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