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zhuklara [117]
3 years ago
12

Anna is majoring in public health. She is designing an epidemiological study to examine the relationship between alcohol consump

tion and academic performance at her university. In addition to ensuring that she has a large enough sample size, what strategy should she take to make sure her conclusions are accurate
Biology
1 answer:
Anastaziya [24]3 years ago
5 0

Answer:

She should ensure that subjects are randomly chosen from the sample group to prevent biases. She should ensure that there are no confounders in her study or that confounders are accounted for, for example, age or year of study. Older students would be more likely to consume alcohol and also be more likely to have better academic performance, for example.

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Answer:

The correct answer is -

Reactants - oxygen and cellulose.

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Explanation:

Burning wood is a chemical reaction that involves a reaction between reactants and produces products with energy. In this chemical reaction, the reactants that take part are oxygen present in the atmosphere and cellulose (wood made up of cellulose).

In this reaction a lot of energy or heat loss takes place and at the end of the reaction carbon dioxide and water produces. however, sometimes other substances also present.

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sweet [91]

First of all, we must understand what we are looking for. We know that producers are basically organisms which make their own food. Therefor some examples are:

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4 0
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Answer:

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Explanation:

7 0
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