Information and IdeasMediumFinding supporting a claim about a cause
Information and Ideas practice question
A vet claims that the sheep on the hill farm are losing condition because of a mineral deficiency in the grazing rather than because of parasites.
Which finding, if true, would most directly support the vet's claim?
- A. Sheep moved to a neighbouring farm with the same parasite load recovered within a month on grazing richer in cobalt, while those that stayed did not.Correct
- B. The sheep have parasites.
- C. Sheep on many hill farms lose condition in winter.
- D. The farm's grass is short.
Answer: A. Sheep moved to a neighbouring farm with the same parasite load recovered within a month on grazing richer in cobalt, while those that stayed did not.
Same parasites, different minerals, different outcome.
Why the other answers are wrong
- B. The sheep have parasites.
- Supports the rival cause.
- C. Sheep on many hill farms lose condition in winter.
- A general pattern, not evidence about the cause.
- D. The farm's grass is short.
- Doesn't distinguish the causes.
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