POUL 1010E EXAM 1 2026 COMPLETE STUDY
GUIDE WITH SOLUTIONS
◉ birds occupy every kind of ecological niche and have evolved
different strategies to thrive in these niches when it comes to
acquiring what? Answer: food (examples listed next)
◉ owls Answer: sense of hearing helps them hunt
◉ kiwis Answer: use their sense of smell to find food
◉ Egyptian vultures Answer: use stones to break open ostrich eggs
◉ bird digestive system Answer: adapted to reduce weight for flight:
no teeth, lack heavy jaw bones, food items swallowed whole and
broken down later
◉ crop Answer: out pocketing at the base of the neck; can store food
here until they are in private to digest; can be used to transport food
and water to nestlings
◉ gizzard Answer: second chamber of the stomach where protein is
broken down
, ◉ ceca Answer: connects the ileum and large intestine, aids in
further digestion of food particles
◉ small intestine Answer: next passage from the gizzard and divided
into three segments; the site of chemical digestion
◉ proventriculus Answer: "true stomach" (first chamber) secretes
substances important for digestion
◉ large intestine (colon) Answer: relatively short in length;
digestion transit times is fast; important location for water and
electrolyte absorption
◉ potential sites (digestive organs) for bacterial fermentation of
ingested leafy plant material Answer: intestinal ceca, cecum, large
intestine (varies by species)
◉ importance of nutritional research prior to placing birds in
captivity Answer: because the diversity of their digestive systems is
so vast
◉ ovoviviparous Answer: fertilization of the female is internal and
mother carries egg inside of them until right before birth
GUIDE WITH SOLUTIONS
◉ birds occupy every kind of ecological niche and have evolved
different strategies to thrive in these niches when it comes to
acquiring what? Answer: food (examples listed next)
◉ owls Answer: sense of hearing helps them hunt
◉ kiwis Answer: use their sense of smell to find food
◉ Egyptian vultures Answer: use stones to break open ostrich eggs
◉ bird digestive system Answer: adapted to reduce weight for flight:
no teeth, lack heavy jaw bones, food items swallowed whole and
broken down later
◉ crop Answer: out pocketing at the base of the neck; can store food
here until they are in private to digest; can be used to transport food
and water to nestlings
◉ gizzard Answer: second chamber of the stomach where protein is
broken down
, ◉ ceca Answer: connects the ileum and large intestine, aids in
further digestion of food particles
◉ small intestine Answer: next passage from the gizzard and divided
into three segments; the site of chemical digestion
◉ proventriculus Answer: "true stomach" (first chamber) secretes
substances important for digestion
◉ large intestine (colon) Answer: relatively short in length;
digestion transit times is fast; important location for water and
electrolyte absorption
◉ potential sites (digestive organs) for bacterial fermentation of
ingested leafy plant material Answer: intestinal ceca, cecum, large
intestine (varies by species)
◉ importance of nutritional research prior to placing birds in
captivity Answer: because the diversity of their digestive systems is
so vast
◉ ovoviviparous Answer: fertilization of the female is internal and
mother carries egg inside of them until right before birth
