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Darina [25.2K]
3 years ago
10

True or false: medical studies often use a relatively large sample (in this case, 3980) because disease occurrences can be rare

and difficult to observe when only isolated populations are considered.
Biology
1 answer:
Nookie1986 [14]3 years ago
4 0

The answer in the statement above is true, it is because it is necessary to have large sample because diseases are unpredictable, which will be difficult especially on isolated populations are being considered. Having an isolated population could be hard to the researches because they only have a limited people to observe, that is why they needed a large sample in order to differentiate results and have enough sample to use.

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Which of the following fresh water biomes consists of moving water
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Biomes consists of moving water is estuaries.

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Explanation:

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Give a working definition of alien invasive species
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The cell is taking in substances through membrane proteins, without any energy expenditure of its own. The substances naturally
Hitman42 [59]

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6 0
3 years ago
Read 2 more answers
True or false: Theoretically, it is possible (but very difficult) for a population to not evolve for a while.
Debora [2.8K]

It is true that it is possible for a population to not evolve for a while.

There is something called the Hardy-Weinberg theorem, which characterizes the distributions of genotype frequencies in populations that are not evolving.

There are 5 Hardy-Weinberg assumptions:

  • no mutation
  • random mating
  • no gene flow
  • infinite population size
  • and no selection (natural nor forced).

You can see that some of these are kinda extreme and really hard to get, but with approximations, we can work.

For example, instead of an "infinite population size" we have enough with a really large population, such that genetic drift is negligible.

Concluding, yes, it is possible (but really difficult) for a population to not evolve for a while (at least, in nature), as long as the 5 assumptions above are met.

If you want to learn more, you can read:

brainly.com/question/19431143

7 0
3 years ago
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