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LuckyWell [14K]
2 years ago
6

How many males in the 2nd generation are affected?

Biology
1 answer:
Step2247 [10]2 years ago
4 0
I think 3 is the answer
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What are sister chromatids?
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Describe how natural selection can affect traits controlled by single genes.
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Overall, how has science impacted human health?
mixas84 [53]

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The correct answer is: <em>C. Increased average lifespan to 78 in the US.</em>

Explanation:

Science has impacted human health by increasing the average lifespan to 78 in the US. Over the last couple of decades, the life expectancy of Americans has increased significantly than what it was 200 years ago. This can be attributed to:

1. Vaccinations- Since the invention of vaccinations, diseases such as tuberculosis, cholera and polio which were major causes of death 200 years ago have virtually been eradicated in the US.

2. Abundant and safer foods available- Commercial and large scale farming has made a wide variety of nutritious foods easier to obtain.

3. Improved sanitation- Safer drinking water, sewage treatment and stricter food inspection has significantly reduced the rate of illnesses due to poor hygiene and sanitation.  

In these ways, science has impacted human health by increasing the average lifespan to 78 in the US.

8 0
3 years ago
How does fresh water differ from coal as a resource? coal replenishes quickly, while fresh water does not. fresh water is an art
Sloan [31]

Renewable resources are the resources which can never be exhausted. The difference between fresh water and coal is that, fresh water is a renewable resource, while coal is a nonrenewable resource.

<h3>What are the types of natural resources?</h3>

Natural resources are materials that people utilize from the Earth.

Generally, resources can be grouped under two categories, i.e. renewable and nonrenewable resources.

  • Renewable resources: The resources that can be grown again or in other words the resources that can never be exhausted are called renewable resources. Examples solar energy, fresh water, trees, etc.
  • Non-renewable resources: These resources are present in a fixed amount in environment or one can say that these can never be replenished if exhausted once. Example coal, oil, fossil fuels, etc.

Thus, the correct option is D.

To learn more about natural resources, visit:

brainly.com/question/13954163

7 0
2 years ago
Read 2 more answers
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