Characterization of nervous system-phylum Annelida
How is nervous system characterized in beings of phylum Annelida? How can one compare cephalization in the annelids to cephalization in platyhelminthes and nematodes?
Expert
Annelids contain a nervous system made up of two ventral chords and one comparatively big nervous cell concentration in its anterior part resembling a primitive brain.
Nematodes contain an anterior neural ring joined to two neural chords, a ventral and a dorsal one, whereas in planarias (or platyhelminthes) there are just two small anterior “cerebral” ganglia from which neural chords divide. Cephalization in annelids therefore is more outstanding than in nematodes or in the flatworms.
Explain the leaf cuticle?
What do you mean by the term Trachea?
What are the three major portions of a eukaryotic cell?
How are Cnidarian identity characterized according to illustrations of representing beings, fundamental morphology, kind of symmetry, germ layers and coelom, respiratory system, digestive system, excretory system, circulatory system, nervous system an
Write down the main functions of spleen? Why is a total splenectomy (or surgical removal of the spleen) compatible with life?
What are anticoagulants? What are the practical applications of anticoagulants, such as heparin, in Medicine?
Write down the three functions of adrenalin? Briefly state it.
How is gingivitis cured?
What is the main difference between cellular specific immune response and humoral specific immune response?
Describe the grave’s disease? Explain how it is characterized?
18,76,764
1940184 Asked
3,689
Active Tutors
1449874
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!