Asked by Perla Dieterle on Jul 26, 2024
Verified
The muscular digestive organ of birds in which food is ground into small bits is the ____.
A) lumen
B) gizzard
C) crop
D) stomach
E) cloaca
Birds
Warm-blooded vertebrates characterized by feathers, beaks, and typically the ability to fly, with some exceptions like ostriches.
Gizzard
Of birds and some other animals, a digestive chamber lined with a hard material that grinds up food.
- Explain the variations in the digestive structures of various species.
Verified Answer
GM
Ghulam MustafaJul 27, 2024
Final Answer :
B
Explanation :
The gizzard is a muscular digestive organ in birds that grinds food into small bits. The lumen refers to the interior space of a hollow organ, the crop is a storage organ in birds, and the stomach is a digestive organ in many animals. The cloaca is a common opening through which digestive, urinary, and reproductive tracts empty in some animals but is not related to the grinding of food.
Learning Objectives
- Explain the variations in the digestive structures of various species.