<span>Yes, uncle, but you want to ask me questions<span>.</span></span>
Puberty begins when the pituitary gland secretes pituitary into the bloodstream to affect the sex organs.
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Answer:
In a census, data about all individual units (e.g. people or households) are collected in the population. In a survey, data are only collected for a sub-part of the population; this part is called a sample. These data are then used to estimate the characteristics of the whole population.
Explanation:
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