Expiration and inhalation
How are expiration and inhalation carried out?
Expert
The diaphragm (limited of mammals) and the intercostal muscles can contract or calm down varying the volume of thorax (that is, the compartment where the lungs are situated). The changing of the thorax volume forces expiration or inhalation.
Whenever the thorax volume is raised an internal pressure lower than the atmospheric pressure (or external) is made and gases naturally enter the lungs. Whenever the thorax volume is lowered, the internal pressure increases above the external pressure and the air is debarred from the lungs.
Mitosis occurs with low frequency in tissues of the slow renovation, such as the bones in adults and the connective tissues. Illustrate.
In metagenesis of Obelia and Aurelia what is the form which generates gametes? What is the form which reproduces asexually?
Describe briefly the life cycle of a tapeworm?
Name the chorioallantois membrane present in embryonic development of reptiles and birds? Also explain the way this membrane participates in energetic metabolism of the embryo?
Explain the type of exoskeleton do some molluscs have?
What are some illustrations of control and informative function of the organic molecules?
Briefly describe harmonious ecological interaction?
Briefly explain the History of Unix for Bioinformatics?
Define the tertiary structure of a protein? Explain the main kinds of tertiary structure?
What are the similarities and differences between the signaling arrays and responses that are driven and associated with the "Jasmontates" in plants, and the "eicosanoids"; arachidonic acid cascade components in animals? This is a large enough questi
18,76,764
1944452 Asked
3,689
Active Tutors
1451942
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!