Biology: Life on Earth

action potential active algae allele amino acids antibodies atoms auxin bacteria behavior birds body bonds brain called capillaries carbon dioxide causes cell division cell membrane cell wall cellular Chapter chemical chloroplasts chromosomes color complex concentration cycle cytoplasm digestive diploid disease dominant ecosystems electron embryo energy environment enzymes eucaryotic evolution evolved example female fertilization FIGURE Flowering Plants fluid fossils function fungi gametes gametophyte genes genetic gland glucose Greek growth haploid hormone human hydrogen immune individual inheritance insects Latin living male mammals meiosis metabolism mitosis molecules multicellular muscle mutation nervous system neurons nucleotides nucleus nutrients occur offspring organisms oxygen pair parent phloem photosynthesis Physiology of Flowering Plants and Animals pollen population predators produce proteins protists reactions receptor release reproduction result root seed species sperm Structure and Physiology sugar synthesis tion tissues traits tube types usually vertebrates X chromosome xylem