Final answer:
Photosynthesis and cellular respiration fall under the big idea of Biological systems utilize free energy and molecular building blocks to grow, reproduce, and maintain dynamic homeostasis.
Step-by-step explanation:
This question falls under the Big Idea 2: Biological systems utilize free energy and molecular building blocks to grow, reproduce, and maintain dynamic homeostasis. Photosynthesis and cellular respiration are two processes that involve the transfer and conversion of energy within biological systems.
Photosynthesis is the process by which plants convert sunlight into chemical energy in the form of glucose, while cellular respiration is the process by which cells break down glucose to produce ATP, the energy currency of cells. Both processes are closely linked and essential for the growth, reproduction, and maintenance of living systems.