Answer:
embryophytes
Explanation:
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Hippocampus
It is a small part of the brain located on the medial temporal love and forms important part of the limbic system, these are the regions that regulates emotions. This is also associated with memory, spatial navigation, consolidation of information. Damage to this area can cause memory loss, difficulty establishing memory . In Alzheimer's disease hippocampus is one of the first regions in the brain to be affected.
I believe it would be 3 because the higher the number the less acidic and the more basic it is.
They both help to draw water into a plant's stem, roots, ect.