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ANALYZING IHE LIVING WORLD
D A SURVEY OF THE LIVING WORLD
Causes of biotic diversity 107
17 other sections not shown
active adaptive algae allele Amer amino acids animals arteries arthropods atoms autotrophic bacteria become behavior biotic birds blood body bonds brain capillaries carbon cavity cells changes chemical chlorophyll chromosome coelom compounds containing cortex cycle cytoplasm digestive dorsal effect electron embryo energy enzyme evolution exoskeleton factors feeding fibers Figure fish fluid function gametophyte genes genetic gills glands glucose growth habitat hormones hydrogen individual insects involved kidney larvae layer living male mammals marine materials mature mechanisms ment metabolic molecular molecules mRNA muscles mutation nerve nervous system neurons normal nucleotides nutrients occur organisms oxidative oxygen pairs parasitic pathway phloem phosphate photosynthesis phyla phylum pigment plants plasma membrane predators pressure produced protein reaction receptors response secrete sensory serve species sperm sporophyte stimulation structure surface survival synthesis take place temperature terrestrial tion tissues transport types vertebrate vitamin xylem