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ludmilkaskok [199]
2 years ago
8

Alex wanted to find out what toothpaste made teeth the cleanest. Everyday she brushed her teeth with a different product and the

n took a plaque test to see how much plaque was left. She used Crest, Colgate, Close-up, and water.what is the independent variablewhat is the dependent variablewhat is the control variable
Social Studies
1 answer:
Minchanka [31]2 years ago
8 0

Answer:

Independent: toothpaste brand

Dependent: amount of plaque left

Control: Water

Constants: amount of toothpaste, kind of toothbrush, how long the toothbrushing took.

Explanation:

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One of the major changes in brain development between the ages of 3 and 15 involves an increase in the speed and efficiency of i
marishachu [46]

Answer:

Myelination

Explanation:

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The myelin sheath increases the speed and efficiency of the electrical impulse transmission in the neurons.  In the given question, the changes in the neurons taking place during the development process is due to the myelination process which increase efficiency.

Thus, myelination is correct.

7 0
3 years ago
What are the two main ways governments regulate the economy?
QveST [7]

Answer:

Fiscal Policy, Two of the main ways that a government influences its nation’s economy are fiscal policy and monetary policy.

Explanation:

4 0
3 years ago
Whats newtons and laws of motion.
Grace [21]
Newton's<span> first </span>law<span> states that every object will remain at rest or in uniform </span>motion<span> in a straight line unless compelled to change its state by the action of an external force. This is normally taken as the definition of inertia. ... For an external applied force, the change in velocity depends on the mass of the object.-google

my own words-it is mostly just saying that if a rock or ball is in one place then it will have to be moved by force and that will cause motion the external force or something other then the rock or ball being you and the </span>velocity depends on how hard you push or move the object
5 0
3 years ago
Mr. Waller's students are working in cooperative groups. Just prior to the transition to the next activity, which will require e
horsena [70]

Answer:

scaffolding

Explanation:

In simple words, Educational scaffolding can be understood as the method under which a teacher provides supports to learners' education in order to help them accomplish tasks. The instructor accomplishes this by expanding on the pupils' prior encounters and understanding as they acquire new abilities. Thus, from the above we can conclude that the correct answer is scaffolding.

6 0
2 years ago
Which continents can easily trade by traveling the Mediterranean Sea?
maw [93]
Europe, africa, and asia.
4 0
3 years ago
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