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statuscvo [17]
3 years ago
11

What rare disease suddenly became much more common in the 1950s? according to the video, what rare disease suddenly became much

more common in the 1950s? the flu lung cancer the common cold emphysema hiv/aids?
Biology
1 answer:
Sergeu [11.5K]3 years ago
3 0
The answer to this question would be: <span>lung cancer

In 1950, the medical practitioner doesn't know the relation of cigarette smoking with lung cancer. In that era smoking advertising is very massive and some physician even helps it. This cause increased amount of lung cancer incidence. The amount of lung cancer continues to increase till 1980-1990</span>
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Answer:

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3.) Because the alleles that the mother and the father carry are mixed together in the offspring.

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7 0
2 years ago
1. John observed bacteria at 100X under the oil immersion and then decided to go back to 40X
weeeeeb [17]

Answer:

The observed image will not be sharp

Explanation:

When 100x microscope objective lens is being used, light refraction in the air is enough high to produce image alterations. Image distortions can be minimized by immersion oil because this liquid has a higher refractive index than air. However, light refraction is not usually noticeable when using 4x, 10x and 40x objective lenses. Moreover, this image will not be sharp after putting oil on the slide and going back to the 40x objective, it is for that reason that the 40x is called 'high dry' lens. In consequence, it is required to clean the immersion oil off the 40x objective. In general, it is required to  to remove the oil and refocus off the slide and lens immediately after oil immersion (it can be done by using an oil-soluble solvent).

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2 years ago
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Karolina [17]

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Explanation:

7 0
3 years ago
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mr_godi [17]

Answer:

True

Explanation:

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