Scientists need to carefully look at their specimens in order for them to create several observations. These observations can yield to possible questions that they need to answer.
When they have numerous questions to be answered, they can formally create several hypothesis and arguments to directly answer questions or creates theories and postulations on the matter/s that they want to answer.
A scientific inquiry always begins with good observation and is the foundation of any scientific argument or research. The same goes for other fields of Physics, Chemistry, Math, among others.
It is released through nitrogen - fixing bacteria
Answer: When the plant has enough water in its cells the guard cells swell up and open the stomata. When the plant isn't getting enough water the guard cells can't swell and the stomata stay closed, so the plant doen's lose water. But if the stomata are closed photosynthesis can't happen and eventually the plant might starve.
Explanation:
Probably through a electron microscope either TEM or SEM. or possibly a picture through the microscope. I hope that helped.
