Question

1 multiple choice 2 points quantum effects in bird migration as children, we learn that birds migrate to warmer climates in the winter. but how do birds know how to find their way? like sailors of the past, birds use the celestial world above us as a compass. however, scientists have recently discovered that birds are able tosee and use the earths magnetic field as an additional migratory map. formed photochemically in the eyes of a bird, small quantum effects in brief molecular pieces, called radical pairs, suggest that birds are essentially able to see the magnetic field lines of our earth and use that as a guide along their journey. magnetoreception, or using a magnetic field to perceive direction, seems to be equally important for migrating birds as the stars and other celestial bodies in the skies. birds possession of these special quantum eye traits is so developed that in a laboratory, even if the magnetic field is inverted, birds experience no disruption to their sense of orientation. next time you observe migrating birds, marvel at their unique capability to navigate between temporal homes, year after year. next time you observe migrating birds, marvel at their unique capability to navigate between temporal homes, year after year. which of the following sentences from the passage is evidence to reinforce the claim presented in the paragraph? as children, we learn that birds migrate to warmer climates in the winter. formed photochemically in the eyes of a bird, small quantum effects in brief molecular pieces, called radical pairs, suggest that birds are essentially able to see the magnetic field lines of our earth and use that as a guide along their journey. birds possession of these special quantum eye traits is so developed that in a laboratory, even if the magnetic field is inverted, birds experience no disruption to their sense of orientation. magnetoreception, or using a magnetic field to perceive direction, seems to be equally as important for migrating birds as the star and other celestial bodies in the skies.

Explanation:

The claim in the paragraph is that birds use the Earth's magnetic field as an additional migratory map. The sentence "Formed photochemically in the eyes of a bird, small quantum effects in brief molecular pieces, called radical pairs, suggest that birds are essentially able to see the magnetic field lines of our Earth and use that as a guide along their journey" directly explains how birds use the magnetic field (due to quantum effects in radical pairs in their eyes), thus providing evidence for the claim.

Answer:

"Formed photochemically in the eyes of a bird, small quantum effects in brief molecular pieces, called radical pairs, suggest that birds are essentially able to see the magnetic field lines of our Earth and use that as a guide along their journey."