According to the view of development, the difference between the immature and mature being is simply one of amount or complexity.

b - the respond is innate and varies over time.

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the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.

b) the inside picture would look at a very high temperature in a very low ph