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Revolutions and Paradigms
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active adapted alleles amino acids animals atoms bacteria begins behavior Biosphere blood body bonds brain called carbon dioxide cell membrane cell wall centrioles centromere chemical chloroplasts chromatids chromo chromosomes complex contains cross cules cycle cytoplasm digestive electrons embryo environment enzymes eukaryotic evolution example female fertilization fibers Figure flowers free energy function gametes gametophyte genes genetic glands glucose growth haploid heat hormones human hypothesis interact layer light light-independent reactions living male mammals meiosis Mendel metabolic metaphase microtubules mitochondria mitosis molecular molecules move muscle mutation natural selection nerve neurons nitrogen nucleotides nucleus occurs organelles organisms oxygen pairs peas phloem phosphate plants polypeptide population produce protein protons reactions regions released replication reproductive ribosomes root seeds shell sodium species sperm sporophyte strands structure surface telophase tion tissue traits transport tube types vacuole vascular vertebrates water potential xylem