Procedure of evolutionary cephalization
Using the examples of the invertebrate nervous systems how can the procedure of evolutionary cephalization be explained?
Expert
Considering the example of the invertebrates it is observed that evolution creates the increasing of complexity of organisms to be accompanied by the convergence of nervous cells to special structures for commanding and controlling: ganglia and brain. In simple invertebrates, such as cnidarians, the nervous cells are not concentrated however they are found dispersed in body. In platyhelminthes a beginning of cephalization with anterior ganglion concentrating neurons is already verified. In annelids and arthropods existence of a cerebral ganglion is evident. In cephalopod molluscs the cephalization is even greater and brain commands the nervous system.
Define mass transportation across the cell membrane?
Write down the types of cell respiration.
What is the significance of radio immuno assay?
Colloidal minerals: A "colloid" is a chemical explanation of a gel-like suspension. Thus, colloidal minerals would be a blend of minerals found in certain form of suspension or solution. Usually, commercially-available colloidal minerals are generated
Explain the endocrine function of placenta?
The steps are as follows: 1) Latent: this stage stands for latent pattern, maintenance and tension reduction. It is marked by the group's natural need to reach agreement as to its purposes, work methods, and expectation and participation obligation
How can nutrients are classified?
Specify some of the structures which is composed of human vision apparatus?
Name the vertebrate group which is considered as the first wholly terrestrial?
Define the term cellular regeneration? How is mitosis associated to this process?
18,76,764
1931898 Asked
3,689
Active Tutors
1460325
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!