Two researchers note that when Weed A and B grow next to each other, the roots of Weed A stop growin скачать в хорошем качестве

Two researchers note that when Weed A and B grow next to each other, the roots of Weed A stop growin

Two researchers note that when Weed A and B grow next to each other, the roots of Weed A stop growing when they enter the root zone of Weed B. Since activated charcoal is known to absorb organic compounds, the researchers apply activated charcoal to the soil around Weed B. They note that the roots of Weed A then grow into the root zone of Weed B. Which of the following hypotheses is being tested by the addition of activated charcoal to the soil? A. Weed A absorbs activated charcoal, which enhances root growth for Weed A. B. Weed B grows best in soil that contains few organic compounds. C. Weed A is attracted to soil that contains activated charcoal. D. Weed B produces an organic compound that inhibits root growth for Weed A.