primitive cell

Phylum Protozoa (Primitive Animals)..

Unicellular (single celled) animals.Nutrition is heterotropi..

There are two types of cell division in eukaryotes namely Mitosis , the equational division and Meiosis ,the reductional division. There is another type of cell division seen in primitive organisms, called amitosis. It is a simple type of cell division in whi..

There are three types of non-primitive unit cells. Taking the example of a cubic unit cell we can see that there are three types. They are: fig 2.2 - Types of unit cells..

There are two basic types of cells found in living organisms - the prokaryotic cells and the eukaryotic cells. This classification is based on three main features, namely; Organisation of biomembranes Nature of cytoplasmic organelles and Arrangement of the nuclear mate..

The coacervates were in a state of dynamic equilibrium, constantly taking in new materials from the oceans and releasing degraded materials. Thus, they had all the basic properties of life such as metabolism, growth and reproduction. However, they lacked the complexity of molecular organization, ca..

Chemical evolution resulted in the formation of life on earth about 3.8 billion years ago. The primitive cells that resulted from this process gradually gave rise to primitive forms of organisms such as bacteria, algae, fungi and protozoan. These organisms in tur..

Chemical evolution resulted in the formation of life on earth about 3.8 billion years ago. The primitive cells that resulted from this process gradually gave rise to primitive forms of organisms such as bacteria, algae, fungi and protozoan. These organisms in turn, gav..

The ovaries lie in the abdomen and are the female reproductive organ. They secrete three steroid female sex hormones Oestrogens, progesterone and relaxin . Ovaries are two almond-shaped glands placed one on each side of the uterus, below the uterine tubes attached to the back of the broad ligamen..

The enlargement of the blastodermic vesicle is followed by the detachment of some cells from the inner cell mass. The detached cells are pushed into the blastocoel to form the embryonal endoderm or hypoblast. These cells rapidly increase in number to constitu..