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Questions and Answers
How do kestrals use their vision in hunting?
How do kestrals use their vision in hunting?
- By detecting changes in air pressure
- By sensing vibrations in the ground
- By detecting UV-reflective chemicals in rodent urine (correct)
- By using echolocation
What is the function of a bird's crop?
What is the function of a bird's crop?
- To grind food like a muscular stomach
- To store and soften food (correct)
- To process nitrogenous waste into uric acid
- To beat rapidly to support wing motion
What is the role of a bird's gizzard in digestion?
What is the role of a bird's gizzard in digestion?
- Regurgitating undigested food matter
- Grinding food like a muscular stomach (correct)
- Storing food like a crop
- Excreting uric acid
Why do many birds like owls regurgitate undigested food matter as pellets?
Why do many birds like owls regurgitate undigested food matter as pellets?
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What is unique about how birds excrete uric acid compared to mammals?
What is unique about how birds excrete uric acid compared to mammals?
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How does a bird's circulatory system differ from that of mammals?
How does a bird's circulatory system differ from that of mammals?
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Which system in birds processes nitrogenous waste into uric acid?
Which system in birds processes nitrogenous waste into uric acid?
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Why is the heart rate of small birds, like hummingbirds, very fast?
Why is the heart rate of small birds, like hummingbirds, very fast?
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What do ecologists learn about bird niches from studying regurgitated pellets?
What do ecologists learn about bird niches from studying regurgitated pellets?
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Why do birds excrete uric acid when it is formed instead of storing it?
Why do birds excrete uric acid when it is formed instead of storing it?
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