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Usimov [2.4K]
3 years ago
15

in a exsperment, all participants receive a treatment but those in the control group recieves a false treatment, which is called

Biology
1 answer:
Delvig [45]3 years ago
6 0
The false treatment is called "placebo"
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emmainna [20.7K]

<u>Answer</u>: predator and prey

<u>Explanation</u>:

The described graph illustrates the cycle of a predator and prey population.  The population curves for predator and prey are not synchronized with each other and their amplitudes differ.

Changes in the prey population will not result in immediate or exactly identical changes in the predator population.

In the attached image, the red line represents the prey population and the blue the predator population. As it can be observed, when the prey population increases in size, the predator population size increases too.

However, this increase is not of the same size and is delayed in time. The predator population will continue to increase even though the prey population has started to decrease.

This has to do with the fact that the adult predators mated and gave birth when the food availability was still high. However, these new young individuals will not survive and reproduce due to decreasing prey. As the prey continues to decrease, more and more predators will perish.

The same cycle will then repeat over and over again.

6 0
3 years ago
Which allele will be expressed when both
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C. recessive only

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A dominant phenotype will be expressed when at least one allele of its associated type is present, whereas a recessive phenotype will only be expressed when both alleles are of its associated type.

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