I’m pretty sure the answer is A, but it could be D
Answer:
D
Explanation:
Bohr determined that there are discrete (unique, different from one another) energy levels in the atom and that electrons will orbit the nucleus within these energy levels, known as orbitals.
Answer:
Explanation:
Cells generate energy from the controlled breakdown of food molecules. ... View Terms of Use molecules that other cells rely on for the energy required to sustain growth, metabolism, ... proteins that span the cell membrane permit specific molecules into the cell, Figure 2: Cells can incorporate nutrients by phagocytosis.
Choice answer D because it is fully correct
