Answer:
B.
Explanation:
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If the prey population is thriving, then the predator population will as well- or at least, until they eat out that population, then the prey and the predators will be at a decline. It's a balance.
The answer is invasive species.
<span>Invasive species are species that are not native to the specific ecosystem, but they are capable of spreading widely through the ecosystem. This way they can threaten native species of the ecosystem or cause environmental harm.
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<span>After being introduced into the
Hawaiian Islands, the cane toads greatly affect local ecosystem. In the new area, they
have a few natural predators and are able to spread. If they spread beyond
the area they are introduced, they become invasive species which can
overgrow native biotopes and are a great threat to the local biodiversity.
This could lead to the extinction of some native species.</span>
The answer is <span>Time is the independent variable, and the number of birds is the dependent variable. </span>
<span>An independent variable is variable that is not affected in the experiment. It is what experimenter controls. On the other side, a dependent variable is called dependent because it depends on the independent variables. It is what is affected during the experiment.
In Sam investigation, he controls time - he counts birds at 6 a.m. and 6 p.m. So, time is the independent variable. The number of birds is affected during the experiment, so it must be the dependent variable.
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Amino acids speed up or slow down the chemical reactions of organisms