PhD Nest

Phylum Porifera: Classification, Characteristics, Examples

Phylum Porifera: Classification, Characteristics, Examples

Definition of Porifera Porifera are asymmetrical or radially symmetrical multicellular organisms with a cellular grade of organisation lacking well-defined tissues as well as organs; exclusively aquatic; mostly marine, sedentary, solitary or conical animals with a body perforated by pores, canals, as well as cambers through which water flows; with one or more internal cavities lined … Read more

Epithelial Tissue Vs Connective Tissue: Definition, 16+ Differences, Examples

Epithelial Tissue Vs Connective Tissue: Definition, 16+ Differences, Examples

Definition of Epithelial Tissue Epithelial tissue is a kind of animal tissue which is composed of highly aggregated polyhedral cells which are tightly attached to each other as cellular sheets which line the inside of hollow organs and cover the body surface. Cells in epithelial tissue or epithelium (plural: epithelium) are organized in continuous sheets, in … Read more

Saturated vs Unsaturated Hydrocarbons: Definition, Differences, Examples  

Saturated vs Unsaturated Hydrocarbons: Definition, Differences, Examples  

Definition of Saturated Hydrocarbons Saturated hydrocarbons are the most basic types of hydrocarbons, consisting completely of single bonds that remain hydrogen-saturated. Acyclic saturated hydrocarbons, often known as alkanes, have the general formula CnH2n+2The more general formula is CnH2n+2(1-r) , where r is the number of rings. There are no double or triple bonds between the … Read more