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kumpel [21]
2 years ago
5

PLEASE HELP!!!

Biology
1 answer:
Murrr4er [49]2 years ago
3 0
The control group is the part of an experiment that does not receive the variable and is used for comparison.
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3 years ago
What is a good strategy for helping to prevent the spread of antibiotic resistance?
Flauer [41]

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Taking antibiotics only on doctor prescription and completing the full course of antibiotics.

Explanation:

Antibiotic resistance occurs when bacteria do not get harmed or killed by a drug which is made against them. Misuse and overuse of antibiotics are the main culprits which induce antibiotic resistance in bacteria.

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3 years ago
In the equation g = rn that is used to study populations, "g" represents:
RideAnS [48]
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2 years ago
A biologist has been studying two populations of trout in Montana for the last 25 years, when the two populations were establish
ludmilkaskok [199]

Answer:

Positive natural selection.

Explanation:

The positive natural selection is a type of natural selection that increases the frequency of an allele or trait when it is advantageous for the population. What happened in the example is that the mouth with the slight change in  morphology (trait)  was more advantageous for the population in the south in relation to the  ancestral morphology  (still preserved in the population in the north), and therefore its frequency increased. This, in turn, is due to the fact that the food (prey) is not the same in the two habitats (north and south).  The specific prey in the south,  caused the new morphology to be selected, (increasing the frequency of individuals with the new mouth),  becasue probably that trait allows the trouts in the south to hunt more effectively.

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