Answer:
the brain stem
Explanation:
the structures of our brain stem, in conjunction with our spinal cord (not a part of our brain) is responsible for involuntary action. Not sure if it generate signals, but hey it's better than no answer.
Water only needed for Photosynthesis.. Not both of Photosynthesis and Respiration..
<span>Early
investigators thought the oxygen produced by photosynthetic plants came from
carbon dioxide. In fact, it comes from water. The water plays an important role
in the production of oxygen. The oxygen that we are breathing comes from water.
In the process of photosynthesis, water would be split into oxygen, hydrogen
ions and electrons. The oxygen product would then be released by the plants.</span>
You can't really answer the question
<span>1. Glucose is a sugar broken down for energy in cellular respiration.
2. Glucose molecules are bonded together to make starch, the food-storage molecule in plant cells.
3. Glucose molecules are bonded into large bundled strands to make cellulose, the structural molecule that builds cell walls in plants.</span>
