Avian digestive tube
Explain the special structures of avian digestive tube and also their respective functions?
Expert
Digestive tube of the birds has special structures:
a) The crop,
b) The proventriculus and
c) The gizzard.
Function of the crop is the temporary storage of the ingested food and it is generally a more dilated area of the avian esophagus. The proventriculus refers to the chemical stomach of birds where the food is mixed with the digestive enzymes. Gizzard is muscular pouch which serves as mechanical stomach where food is ground in order to increase the exposure area of food particles for the digestive enzymes to act.
List types of fecundation which occurs in the arthropods? What is predominant type?
Characteristics of a good policy To be effective, a policy must be formulated after carefully considering all aspects of the situation to which it is to be applied.
In electronic conductors, state the reason for flow of current?
Compensation: It is the total cash and non-cash payment provided by an employer to an employee in return for the services rendered to the corporation. Apart from wages and salary, compensation too includes: •
Is rabies caused by the virus or by the bacteria? How is it transmitted? Which organs and tissues are influenced by disease? How is it avoided and treated?
What does Ammonal comprises? For what purpose it is employed.
Food once swallowed by the Cows and then this food goes back into their mouth to be chewed again. Explain this phenomenon?
Evolutionarily protochordates can be intermediate animals between the invertebrates and vertebrates. Consider the scientist is testing hypothesis, which states that vertebrates are evolved from echinoderms. Being research objects a newly evolved protochordate species,
Give a brief explanation of vaccination.
Describe the two main sub-divisions of phylum Chordata?
18,76,764
1935239 Asked
3,689
Active Tutors
1436927
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!