B. Chloroplasts perform photosynthesis, which converts light into sugar, which is food (energy). Then, the organelle mitochondria coverts that energy into a more usable form of energy by the cell, in a process called cellular respiration.
Photosynthesis, respiration and combustion.
Answer:
through a tiny hole or slit in a metal plate to isolate light from a single area or object.
Answer:
biosphere is the highest level.
Explanation: