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Eduardwww [97]
2 years ago
9

How are observational studies of populations different from experimental studies? What can be learned from observational populat

ion studies?
SAT
1 answer:
WINSTONCH [101]2 years ago
5 0

Answer:

In an observational study, we measure or survey members of a sample without trying to affect them. In a controlled experiment, we assign people or things to groups and apply some treatment to one of the groups, while the other group does not receive the treatment.

Explanation:

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An excerpt refers to a short extract from a film, music and/or writing.

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2 years ago
Wild parrots live in warm climates. Few young parrots would survive an exceptionally cold winter in these regions. If this cold
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The statements that best describes how the parrot species will respond is that they will migrate to higher latitudes to preserve their population.

<h3>How will the parrot adapt?</h3>

Despite that organism adapt with conditions, it will be difficult for the parrot to withstand continuously the cold winter in these regions for a year.

Hence, the parrot species will respond by migrating to higher latitudes to preserve their population.

Therefore, the Option B is correct.

Missing options <em>"A)The surviving parrots will die during this winter or the next winter., B)The parrots will migrate to higher latitudes to preserve their population., C)The surviving parrots will produce offspring that have larger feathers to cover the body., D)The parrot population will, over generations, produce offspring that are better able to tolerate cold weather."</em>

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Read more about bird migration

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2 years ago
The large rectangle below represents one whole
hodyreva [135]
Where is the picture? I need more information to know the question
5 0
3 years ago
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your business plan calls for sales of $45,000 in year 1 with compound growth of 30% per year thereafter. what are your projected
RSB [31]

Answer:

48000

Explanation:

because,

45000×(1+30×100)

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Which statements are true descriptions of earth's interior layers? select the two correct answers.
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Answer:

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