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REY [17]
3 years ago
9

A model of an atom includes red marbles for electrons, green marbles for protons, and blue marbles for neutrons. All marbles hav

e a radius of 2 cm. How could the model be changed to represent more properties of an atom?
Biology
2 answers:
Viefleur [7K]3 years ago
7 0

Answer: Change the electron radius.

Explanation:

This  would be a more accurate representation because electrons are the smallest particles.

Darina [25.2K]3 years ago
7 0
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What type of gene mutation is shown in the image?
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Explanation: Mutations are permanent changes in the nucleotide sequence of a DNA molecule. Substitution leads to a point mutation if only one nucleotide is replaced by another.

A substitution mutation occurs when one or more nucleotides in a DNA sequence is replaced by another nucleotide.

Example of substitution is in sickle cell hemoglobin in which valine replaces glutamate at position six in the two beta chains of hemoglobin. In a normal hemoglobin, the two beta chains of hemoglobin have glutamate at the sixth position but in a sickle cell hemoglobin, valine is found at position six on the two beta chains. This is also an example of a point mutation.

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HELP ME PLEASE-If you notice that pollution was harming a nearby lake, how would you convince your community of the need to take
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Answer:

We can kindly ask the community to be aware of our earth a little better so it doesn't end up being polluted. Some examples they can help with:

Explanation:

1. Use reusable water bottles, not disposable.

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2. Don’t wash your car in the driveway, wash it on the lawn.

A variety of pollutants and detergients are rinsed from your vehicle during washing. By parking your car on the lawn the plants in your lawn can limit the amount of these pollutants that enter into the street drain and then to streams and lakes. Plants will uptake the chemicals and reduce the pollutants that make it to the streams.

and

3. Dispose of hazardous chemicals properly. Don’t dump down the drain, indoors or out.

Hazardous chemicals include cleaners, paints, and many other often used chemicals. The idea that the chemical will be deluted and won’t be a problem is false. Drains are not for disposing of liquid garbage. These items are probably the most important to store, use, and dispose of properly.

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