Function of iris and of pupil
Write down the function of iris and of pupil?
Expert
The iris works like the diaphragm of photographic camera because it has muscles which contract or relax varying pupil diameter. When the luminous intensity heightens parasympathetic nervous system commands the contraction of pupil; when there is shortage of light sympathetic nervous system stimulates the dilation of pupils. These movements depend upon muscles of iris.
Explain the reproduction process of birds in brief?
What are several illustrations of movement made by the contraction of sarcomeres of the muscle cells?
Name the type of circulatory system existed in arthropods? Do such animals have heart and respiratory pigments?
Determine the values of DPD for plant cells in hypertonic, hypotonic and isotonic media?
There are several factors that influence the effectiveness of a group. Certain characteristics of the group, the types of tasks they perform, the work setting, the technology used and the operating dynamics of the group within the work setting all have an influence on group effectiveness, we can
Compare the method of digestion between protozoans and sponges
How do water absorption volume and water transpiration volume comparatively differ in plants in a day? What is final comparative balance of these processes?
State the germ layer from which coeloms initiate?
What is the common equation of the aerobic respiration (as well representing ADP and phosphate)?
The super ego represents societal and personal norms and serves as an ethical constraint on behavior. It can best be described as the conscience. The super ego provides norms to ego to determine what is wrong or right. However, a person is not aware of the working of the super ego, and cons
18,76,764
1942063 Asked
3,689
Active Tutors
1456420
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!