Special structures of the avian digestive tube
Describe the special structures of the avian digestive tube and their relevant functions?
Expert
The digestive tube of birds consists of special structures, in this sequential order: the crop, the proventriculus and the gizzard. The crop consists of the function of temporary storage of ingested food and it is a much dilated region of the avian esophagus. The proventriculus is the chemical stomach of birds where food is mix with digestive enzymes. The gizzard is a muscular pouch which serves as a mechanical stomach where the food is ground to raise the exposure region of the food particles for the digestive enzymes to perform.
How does phosphocreatine act in the muscle contraction and relaxation?
How does facilitated diffusion show similarities with the enzymatic chemical reactions?
How extracorporeal digestion allocated to predation in the arachnids?
What is the significance of iron in diet? Name the disease caused by the deficiency of iron?
Explain in brief the term cell theory?
If provided a territory and a list of physicians to call on, how would you go regarding it?
What are the various types of fecundation which take place in arthropods? Also describe the predominant type?
Describe steroids? What are various illustrations of steroids with a biological function?
What is meant by polyembryony?
Write down rule for pairing of nitrogen-containing bases in DNA molecule and in RNA?
18,76,764
1940719 Asked
3,689
Active Tutors
1446499
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!