Answer: 1 : knowledge about the natural world that is based on facts learned through experiments and observation. 2 : an area of study that deals with the natural world (as biology or physics)
Explanation:
Because, it is the process by which they make or produce their food with the help of sunlight, water and carbon dioxide.
If photsynthesis is not there then there would be no production of food and ultimatley plants will die.
Answer:respiratory system
Explanation:The primary function of the respiratory system is to deliver oxygen to the cells of the body's tissues and remove carbon dioxide, a cell waste product. The main structures of the human respiratory system are the nasal cavity, the trachea, and lungs
Explanation:
Generation time is the time taken for a cell population to double in numbers and thus equivalent to the average length of the cell cycle.
