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wgu mod 8 science

ISA4/ISC4

QuestionAnswer
the maintenance of a stable internal environment homeostasis
food broken down into organic molecules that can be absorbed and used by the body digestive system
the process organisms use to convert light energy from the sun into chemical energy in organic molecules photosynthesis
what protects us is our immune system, which can be divided into two parts, innate immunity and acquired immunity immune system
nonspecific body defenses that work against a wide variety of potential pathogens. ex. skin, hair innate immunity
a system of highly specific body defenses that recognize and react to very specific features of pathogens. acquired immunity
lack of nucleus prokaryotic cells
have a nucleus as well as other structures not present in prokaryotic cells eukaryotic cells
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
are chemical messengers that give instructions to the body hormones
seven characteristics - feeding, movement, breathing or respiration, excretion, growth sensitivity, and reproduction characteristics of living things
Created by: Camilla Brittain Hernandez Camilla Brittain Hernandez on 2009-06-18



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