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Kamila [148]
3 years ago
7

Joel claims that “Bright White Toothpaste” removes tooth enamel stains better than all other brands. Which of the following shou

ld be documented as evidence to support his claim?
1. The amount of toothpaste used
2. The shade of teeth before and after brushing
3. The type of toothbrush used to brush teeth
4. The size of tooth
Biology
2 answers:
katovenus [111]3 years ago
4 0

Answer:

The shade of teeth before and after brushing

Explanation:

The amount of toothpaste doesn't matter, but most dentists say just the size of a pea. The type of toothbrush doesn't matter as much, because they should be the same. The size of the tooth definitely doesn't matter.

You should take a picture of what your teeth look[ed] like before you brushed your teeth, and after you brushed your teeth. You can do this with many different kinds of toothpaste and see which ones make your teeth whiter or darker.

ikadub [295]3 years ago
3 0
2. The shade of teeth before and after brushing

The independent variable in this instance is the bright white toothpaste, and if they’re claiming that it removes stains better than all, then that means that the dependent variable would be the shade of teeth!

The amount of toothpaste, the type of tooth brush, and the size of tooth are all variables of the experiment but will not determine if the claim is supported or not.

Hope this helps:)!
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The Retroviruses contain reverse transcriptase enzymes that make a dsDNA molecule from their ssRNA genome.

<h3>What is a Retroviruses?</h3>

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The next strategy is to test yourself. Leave it for like 4 minutes and go do something else. (Personally, I usually listen to music).

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