The right answer is D) photosynthesis in plants
Cellular respiration does not produce oxygen, it consumes it rather. The same for the respiration of animals and the human being.
The degradation of organic matter does not produce oxygen.
Photosynthesis is the only one of these proposals that produces oxygen, and this process belongs to the plants.
Increasing thirst when cells are low on water because you want to get back to equilibrium and have your cells be back to baseline for water.
In plants and algae, which developed much later, photosynthesis occurs in a specialized intercellular organelle which is the Chloroplast.
B. False, because there are two type of species tobacco the Nicotania Rustica and the other one is Nicotania Tabacum.
