Answer:
Explanation:The Photosystems are the functional centers of photosynthesis. The pigments, such as chlorophyll, in the photosystems absorb light energy, which excites electrons. These electrons are transferred to electron-accepting molecules, eventually producing ATP and NADPH.
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The breathing process occurs as follows: Inhalation increases the volume of the lungs, which reduces internal pressure and causes air to enter. Then the exhalation makes the opposite process. Gaseous exchanges occur in the lung alveoli and are responsible for eliminating the gases we do not need and preparing the oxygen to be spread throughout the body.
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It takes 8 electrons to fill a shell.
Answer: Gastrocholic reflex
Explanation:
The gastrocholic reflex or gastrocolic response is one of the physiological reflexes in the stomach which controls the movements like peristalsis and motility in the gastrointestinal tract.
This reflex is generated by the the food particles that enters the stomach. The bolus of the food in the stomach helps in the mass movement of the other food particles in the colon.
This reflex is known as gastrocholic reflex.
