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MAVERICK [17]
3 years ago
9

Scientific investigations begin by asking questions that can be tested, measured, or both. Which question meets this criterion?

Biology
2 answers:
grin007 [14]3 years ago
5 0

Answer:

B) Do hand sanitizers decrease a person’s risk of a bacterial infection?

Explanation:

Data related to the use of hand sanitizers can be analyzed to understand whether hand sanitizers help decrease bacterial infections.

Y'ALL WELCOME GG ;)

liberstina [14]3 years ago
4 0
The answer choices are not provided, so I cannot select the correct one. However, I may provide you examples and guidance on how to choose the correct one.
As mentioned in the explanation, a scientific question must have a variable that is changed, the independent variable, and a variable on which the effect of the change is measured. This is the dependent variable. Examples of such questions include:

How will the amount of water given to a plant affect its rate of growth?
What will be the amount of sugar that can be dissolved in water at a given temperature?
At what temperature will a balloon filled with air pop?

All of these questions may be tested using experiments.
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Baking soda is placed in a balloon. The balloon is then wrapped around the mouth of a flask that contains
Veronika [31]

<u>Answer:</u>

Option (C)

There is no change in mass during a chemical reaction;

<u>Explanation:</u>

The law of mass conservation can better explain this phenomenon. According to the rule, "Energy can not be either produced, nor can it be lost."

In simpler terms, the total masses of all substance involved in a chemical reaction are same. Furthermore, the total atoms on either sides, i.e., reactant side and product side are the b.

5 0
3 years ago
Which domain(s) include(s) only prokaryotes?
RSB [31]
Domain Archaea

Like bacteria,Organisms in domain Archaea are prokaryotic and unicellular. Superficially, they look a lot like bacteria, and many biologists confused them as bacteria until a few decades ago.
7 0
2 years ago
Idk what to draw on here help me out please :/
r-ruslan [8.4K]

You should draw d.eez nuts XD

3 0
3 years ago
How is dna read and made, from what end to what end?
diamong [38]
Think of DNA as a code and think of your brain as a computer. Computers must have code to tell them what to do! Without DNA, we wouldn’t be able to function! People who are missing some “code” aka a strand of DNA may have some disabilities such as blindness. This is because their brain doesn’t known what to do with their eyes because they don’t have “code” to tell them what to do!

Hope that this helped.
4 0
3 years ago
"alejandro had his cholesterol checked recently. his results showed a total blood cholesterol concentration of 260 mg/dl. based
Setler [38]

Answer:

The correct answer would be - high risk of developing CHD.

Explanation:

Every animal and humans need some cholesterol to regulate bodily functions such as creating hormones, vitamin d forming, cell membrane and many more. But if someone have too much cholesterol in his body, he must have developed a higher risk of coronary heart diseases or CHD.

The total cholesterol level under 200 mg/dL (milligrams per deciliter) is classified as normal for the adults. Reading between 200 to 239 mg/dL is considered as a borderline where is above 240 mg/dL is considered as high. Alejandro's reading falls under high cholesterol level so he has a higher risk of developing CHD.

Thus, the correct answer is - a higher risk of developing CHD.

4 0
2 years ago
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