The correct answer is the cluster sample is obtained by selecting individuals who are easily contracted rather than who voluntarily respond because cluster sampling is a way of dividing a group then the individual responsible for picking from the selected population will select people from the cluster in which is easily contacted.
(4) deer eating grass
because the relationship is between a consumer (heterotroph) and a producer (autotroph) it is likely to be the deer, which in this case is the consumer, eating the grass.
Answer:
The Short Answer:
Air pollution is caused by solid and liquid particles and certain gases that are suspended in the air. These particles and gases can come from car and truck exhaust, factories, dust, pollen, mold spores, volcanoes, and wildfires. The solid and liquid particles suspended in our air are called aerosols.
Explanation:
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The biggest difference between prokaryotes<span> and </span>eukaryotes<span> is that </span>eukaryotes<span> have a nucleus. They also have other membrane structures called organelles.</span>