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Information and IdeasMediumEvidence that a bird returns to the same nest

Information and Ideas practice question

A naturalist claims that the same pair of ospreys returns to the same nest on the lake every spring.

Which finding, if true, would most directly support the claim?

  1. A. The female, ringed at the nest in 2019, has been identified by her ring number at the same nest in each of the five springs since.Correct
  2. B. Ospreys are known to build large nests.
  3. C. A pair of ospreys has been seen on the lake every spring.
  4. D. The nest is in a tall pine tree.

Answer: A. The female, ringed at the nest in 2019, has been identified by her ring number at the same nest in each of the five springs since.

A ringed individual, same nest, five years.

Why the other answers are wrong

B. Ospreys are known to build large nests.
Nest size is not identity.
C. A pair of ospreys has been seen on the lake every spring.
A pair each spring could be different birds.
D. The nest is in a tall pine tree.
Location is not identity.

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