For example, in Obelia there are feeding individuals, the gastrozooids; the individuals capable of asexual reproduction only, the gonozooids, blastostyles and free-living or sexually reproducing individuals, the medusa…..
Cnidarians have double layer organization and are therefore diploblastic having tissue grade organization and have organs. During the development two germinal layers are formed the outer ectoderm and inner endoderm from which their bodies are constructed.
A combination of one or more characters is called field. It is the smallest unit of data that can be accessed by the user. The name of each field in a record is unique. The data type of a field indicates the type of data that can be stored in the field. Each field contains one specific piece of information. A field size defines the maximum number of characters that can be stored in a field.
A particle is said to possess an angular momentum about a reference axis if it so moves that it’s angular position changes relative to that reference axis.
The angular momentum L of a particle of mass m moving with velocity v and momentum p (Fig. 5.10) relative to the origin O is defined as
Data is a valuable asset for an organization. Data can be used by the managers to perform effective and successful operations of management. It provides a view of past activities related to the rise and fall of an organization. It also enables the user to make better decisions for future. Data is very useful for generating reports, graphs and statistics etc.
There are also many other sources of advertisement such as customer service sites, ads and outdoor advertisement. Among them, the messaging source of marketing stress to focus on client and their responsibility. Messaging and Email are the best source to advertise and extend your business.
These animals are composed of many cells however there is no tissue organization and have no organs. Sponges lack symmetry. In most sponges the body wall is formed of an outer layer, pinacoderm, made up of cells called pinacocytes:
Consider a mass m attached to the end of a massless rod as shown in Fig. 5.8.let us assume that the bearing at the pivot point O is frictionless. Let the system be in a horizontal plane. A force F is acting on the mass perpendicular to the rod and hence, this will accelerate the mass according to
Diploblastic animals belong to division radiata. The body of these animals consists of two layers of cells, ectoderm and endoderm. There is a jelly like mesenchyme or mesogloea which in most cases is non cellular. Diploblastic animals show lesser degree of specialization and they do not form specialized organs.
This group includes animals with bilateria symmetry. In an animal where the right side is approximately the same as the left side and where there is a distinct anterior end is said to have bilateral symmetry. The animal can be divided into two equal parts by an imaginary line only in one plane.