Answer:
my best answer is b due to logic if not then d
Explanation:
If a researcher electrically stimulates the reticular formation in an animal, the animal will immediately wake up and be alert. Its purpose is to have some control of sensory signals and thus has the ability to alert the body when it is tired or needs to be awake.
Before the Calvin cycle begins the energy is stored in bonds of ATP
It is intercepted first by the atmosphere, a small part of the sun's energy is directly absorbed, particularly by certain gases such as ozone and water vapor. during the day the sun shines through tha atmosphere <span>
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