Have been found to have <span>lower-than-normal levels of serotonin
</span>Serotonin helps us to regulate and maintain normal level of anxiety, happiness, and mood
Lower level of serotonin will make us feels constant uncontrollable emotions that often lead to aggressive behaviors.
I think it is false because the least populated country in the world, Vatican City, has fewer than 1,000 residents and is still considered a country
Answer:
The Concrete Operative Stage
Explanation:
According to Piaget in the Concrete Operative Stage the child begins to deal with concepts such as numbers, measures and relationships. This stage comes to manifest more clearly what coincides (or should coincide) with the beginning of formal schooling, that is, with elementary school. It is characterized by consistent internal logic and the ability to solve concrete problems. In the case of the child shown in the question, we can see that she has a notion, even if very correct, of the amount of juice she had and because of that amount she worked out a reason why the amount of juice she had decreased. Because of this reasoning ability, we can conclude that this child is in the concrete operative stage.
The correct answer for the question that is being presented above is this one: "the Labrador current, the Great Barrier Reef, the Hoover Dam." Physical systems refer to <span>processes occurring in nature that shape the earth's surface and interact with plant and animal life to create, sustain, and modify ecosystems.</span>
