Chemoreceptors on the starfish's skin can detect the faintest smell of its prey (clams), and even determine the direction from which it is coming.Because starfish lack teeth, they must convert their food to liquid form before they can ingest it. Among the other prey items this bottom-dwelling predator eats are sea urchins, other starfish, small fish, sponges, and carrion.

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How does human activity impact Earth's systems such as deforestation,

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Because it’s flowing through

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The death rates in the United States decreased more than 40 percent from 1930 to 2015. Which factor could have contributed to th

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Answer:

The correct answer is - B. better medical facilities and treatments.

In the past century, the life expectancy in the United States have increased significantly, in fact it is almost doubled. The death rates have decreased for around 40% and the biggest reason for this trend are the advancements in the medical field. The medical facilities and treatments have improved significantly. The technological advancements contributed to the medical field a lot, made it much more efficient, and because of that the prevention of diseases, curing, and the saving of lives have skyrocketed, resulting in much better, healthier,and longer life of the population

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