Biology
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Dopamine and serotonin are examples.
Dopamine and serotonin are examples.
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kirsten8605
4,6(28 marks)
Besides chemicals they are also happy chemicals, if ur happy or feeling positive then ur brain releases dopamine and serotonin
hannahkharel2
4,9(2 marks)
When we change the manipulated variable (amount of nutrients in soil), will it change the number of plants that grow in that community?
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