A. Earth worms
Because it can only flow one way
Answer:
did you mean
Explanation:
human beings stop growing at 35 age i think
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The variable that researchers manipulate is the independent variable.
The reason for this is because in experiments different manipulations are often introduced. The sole purpose of these manipulations is to see whether they will affect our independent variable and if they will change its value.
Throxine hormone will be released as it regulates the metabolism of carbohydrates, fats and proteins. This hormone is released by thyroid gland present in our neck