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August 2019 Living Environment Regents Questions 11-20 Multiple Choice Test

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August 2019 Living Environment Regents Questions 11-20

Use your knowledge of Living Environment to answer all questions in the data set. You may need a calculator to answer some of the questions. Good Luck. Corresponding data sets: 56858, 56859, 56860, 56861

NOTE: If the question contains an image, clicking on it will enlarge it for easier viewing. If there is a "More Info" link after the question, clicking it will display additional content related to the question.

The hair colors of the sons are most likely a direct result of

A sample of DNA from a human skin cell contains 32% cytosine (C) bases. Approximately what percentage of the bases in this sample will be thymine (T)?

The food coloring is not harmful to most people, but in a small number of individuals, it causes a reaction and affects their ability to breathe. This response to carmine is known as

As a way to reduce the number of cases of malaria, a human tropical disease, a specific DNA sequence is inserted into the reproductive cells of Anopheles mosquitoes. Which process was most likely used to alter these mosquitoes?

Which row in the chart below accurately identifies two causes of mutations and the cells that must be affected in order for the mutations to be passed on to offspring?

One way this form of reproduction differs from sexual reproduction is

If the fish population decreases, what is the most direct effect this will have on the aquatic ecosystem?

This sequence of changes is the result of

Some salmon have been genetically modified to grow bigger and mature faster than wild salmon. They are kept in fish-farming facilities. Which statement regarding genetically modified salmon is correct?

Which group of organisms in an ecosystem fills the niche of recycling organic matter back to the environment?

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