Biology Actions Potentials and Synapses Altruism and mate selection Behavior as an Adaptive trait Cellular Currencies of Energy Central Dogma Charles Darwin "the Origin of species" Competition and the ecological niche Costs and benifits of behavior DNA Determination and Differentiation Dividing DNA between dividing cells Ecological communities Ecological interactions among species Energy and Resources in Living systems Energy in Ecosystems Enzymes Making chemistry work in cells Form and Function of Plants Gene Expression Genes and Chromosomes Genes and Development Genetic Engineering and Biotechnology Homeostasis Immune System Induction and Pattern Formation Making ATP -Glycolysis and Cellular respiration Mendel and his flea plans Natural selection in action Neurons Nutrients in ecosystems