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o-na [289]
3 years ago
13

What is the dependent variable in the experiment involving children? A. The ages of the children with asthma B. The severity of

the asthma symptoms C. The number of children with asthma D. Where the children spend the summer
Biology
1 answer:
Verizon [17]3 years ago
4 0

Answer:

B

Explanation:

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A) ¿Qué son las enzimas y por qué se las denomina catalizadores biológicos?
Setler [38]

Answer:

las enzimas son proteínas y aceleran reacciones químicas.

8 0
3 years ago
explain what DNA is and how the model of DNA developed .You should include information on how genetic information is carried ,as
jolli1 [7]

Answer:

DNA is a Deoxyribose nucleic acid and our Dna strand is double helix

Explanation:

I kow this because if you close you see two strands

7 0
4 years ago
Darwin was spurred to finally publish his theory of natural selection by the writings of which scientist?. A.Lyall. B.Hutton. C.
velikii [3]
I believe is was C. Wallace 

4 0
4 years ago
If false, please make it a correct statement. A rancher uses a particular chicken for breeding purposes because, on average, she
schepotkina [342]

Answer:

b) false

Explanation:

The given statement is false. the selection process used by the rancher is an example of artificial selection and not natural selection.

Artificial selection is defined as the selection process done by humans on the basis of desirable characters while in natural selection the selection is based on the  adaptive characteristics of animals. In the given example rancher choses a desirable character of chicken that lays more eggs.

Hence, the given statement is "false".

8 0
3 years ago
Imagine you are an engineer who needs to test a scale model of a
FinnZ [79.3K]

Answer:

The problem will be because:

  • <u>The error in the construction of the bridge will be actually 40 cm</u>.

Explanation:

When you, as an engineer, listen about a scale 1/20, it means that for each 1 cm in the model, it will be 20 cm in the real footbridge (20 times upper to the scale model), then how the error in the model is 2 cm, the real error is 40 cm, in this case, imagine that you didn't know that the bridge will have an error of 40 cm, which is approximately 1,31 ft, <em><u>from a side of the bridge you begin with the correct measure, and the other side you use the measure with the error of the 40 cm, the result is that when you going to finish the bridge in the center, this won't match, making more expenses to correct that big error</u></em>.

8 0
3 years ago
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