SCIENCE
ZOOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If they absorb too much fat from their diet, they can impair their livers.
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If they take too long, they are susceptible to predators.
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They can’t afford the extra weight in flight.
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They often swallow prey alive. Fast digestion ensures minimal injury to digestive system.
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Detailed explanation-1: -Why is it important for birds to digest their food quickly? If they absorb too much fat from their diet, they can impair their livers. If they take too long, they are susceptible to predators.
Detailed explanation-2: -Inside a bird’s stomach, food is bathed in digestive juices and then passes into a special muscular organ called the gizzard. This grinds it down into smaller pieces for easy digestion. Some birds, such as ostriches, swallow pebbles to help the grinding process.
Detailed explanation-3: -As you might expect, digestion in birds consumes a lot of energy. In fact, the gut is the fastest growing tissue in the bird’s body, since it’s continually digesting and renewing itself. However, when birds migrate, they can’t afford to spend all that energy on digestion.
Detailed explanation-4: -These tiny invaluable minerals help birds break down and digest food. Birds will store grit in their gizzards where it works with the organ to break down hard-to-digest foods. This in turn helps them keep on the calories. As you can imagine it takes quite a lot of energy flying around all day!
Detailed explanation-5: -Birds have a glandular stomach, or proventriculus, and muscular stomach or gizzard. The glandular stomach receives food from the esophagus, and secretes mucus, HCl and pepsinogen, similar to what is seen in the mammalian stomach.