Big Idea #2: Biological systems utilize free energy and molecular building blocks to grow, reproduce, and maintain dynamic homeostasis.
2A Growth, reproduction and maintenance of the organization of living systems require free energy and matter.
2B Growth, reproduction and dynamic homeostasis require that cells create and maintain internal environments that are different from their external environments.
2C Organisms use feedback mechanisms to regulate growth and reproduction, and to maintain dynamic homeostasis.
2D Growth and dynamic homeostasis of a biological system are influenced by changes in the system's environment.
2E Many biological processes involved in growth, reproduction and dynamic homeostasis include temporal regulation and coordination.