Biology: Discovering Life: Molecules of Life

active allele amino acid animals atoms bacteria base beak biological biologists birds blood bonds called carbon dioxide cause cell division chain Chapter chloroplast chromosome codon color complex compounds contain cytoplasm Darwin disease diversity DNA molecules ecological ecosystems effect electron transport energy environment environmental enzyme eukaryotic evolution evolutionary example F₁ factors female Figure finches forest gametes gene genome genotype glucose glycolysis habitat high-energy electrons human hydrogen individuals inheritance insects island isolated known Krebs cycle light-dependent reactions lipids living male meiosis membrane Mendel mitochondria mitosis molecular molecules mRNA mutations natural selection nitrogen normal nucleus nutrients occurs offspring organelles organisms oxygen pair pathway pattern percent phenotype photosynthesis pigment plants plasmid polypeptide population growth produce prokaryotic proteins protons released reproductive ribosome scientists seeds sequence single speciation species strand structure substrate survive synthesis THEORY IN ACTION tion trait X chromosome