What adaptive trait is seen in both bird species the high flying bar-headed geese and deep diving emperor penguins? (Select all that are correct. There may be one or more correct options)Group of answer choicesLarger lungs to inspire more of the air during flight for bar-headed geese and during surfacing for penguins to replenish their suppliesIncrease myoglobin in the swim and flight muscles in both speciesIncrease O2 affinity to Hb to provide better loading of oxygen in the bloodPronounce bradycardia during exercise to reduce metabolism (flying geese and diving penguins)
Question
What adaptive trait is seen in both bird species the high flying bar-headed geese and deep diving emperor penguins? (Select all that are correct. There may be one or more correct options)Group of answer choicesLarger lungs to inspire more of the air during flight for bar-headed geese and during surfacing for penguins to replenish their suppliesIncrease myoglobin in the swim and flight muscles in both speciesIncrease O2 affinity to Hb to provide better loading of oxygen in the bloodPronounce bradycardia during exercise to reduce metabolism (flying geese and diving penguins)
Solution
The adaptive traits seen in both bird species, the high flying bar-headed geese and deep diving emperor penguins are:
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Increase myoglobin in the swim and flight muscles in both species: Myoglobin is a protein in muscle cells that binds to oxygen. It allows these birds to store more oxygen in their muscles for when they are flying or diving.
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Increase O2 affinity to Hb to provide better loading of oxygen in the blood: Hemoglobin (Hb) is the protein in red blood cells that carries oxygen from the lungs to the rest of the body. An increased affinity means that the hemoglobin is more likely to bind to oxygen, allowing these birds to carry more oxygen in their blood.
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Pronounce bradycardia during exercise to reduce metabolism (flying geese and diving penguins): Bradycardia is a slower than normal heart rate. By slowing their heart rate during exercise, these birds can conserve energy and oxygen.
The option of larger lungs to inspire more of the air during flight for bar-headed geese and during surfacing for penguins to replenish their supplies is not necessarily correct. While larger lungs could potentially allow for more oxygen intake, it's not a specific adaptation that has been identified in these species.
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