Something with higher electric potential than the ground or a defined null or neutral point. Electrons flow from the positive point in a circuit. See also negative, null, and potential.
Answer:
Organ systems are organs that work together to perform a specific bodily function, so your answer is D
Explanation:
Europe is the most likely answer.
It forms the outer layer of a cell. It gives an animal cell its shape. It is selectively permeable.
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The answer is young child.
Nasal regurgitation it's when the food regurgitates out of the nose.
This is more likely to occur in babies/ young children with some birth defects in the soft palate, or if they have a cleft lip. Those birth defects, usually, get fixed with surgery when they are still children, that's why is less frequent after that age.