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We need energy from maintaining cellular activities for growth, development and the regular replacement of damaged old cells by the new cells and to meet the energy we need for food. But food we take does not contain only one type of component, the food we take is actually a mixture of different types of … Read more

Today we are going to discuss a great rule of our environment, competitive exclusion principle and we will discuss the concept of ecological niche.  In our environment a number of different organisms grow at a very high rate but their requirements like food, shelter and other resources are limited so it is sure that the … Read more

Hi, now we are going to discuss the nature of a competent cell, its nature and preparation of competent cells and principle of competent cells.  What is Competent Cells: In general if we place a living cell in a DNA rich medium then the DNA do not automatically enter into the cells but bacteria show … Read more

Hi, we already discussed characteristics and classification of animals, now we are going to discuss the characteristics and classification of plant kingdom which differentiate the plant from the other kingdom.  According five system of classification organisms can be categorised into five main groups, kingdom monera, kingdom protista, kingdom fungi, kingdom animalia and kingdom plantae based … Read more

In formation of transgenic organisms a very important step is choosing the correct vector for carrying the desired gene upto the target cell and different types of vector are available but all are not suitable for all purposes. If we know about the features and types of cloning vectors then it will help us to … Read more

Hi, we know that different types of gene have different types of molecular form or allele and in a pair of homologous chromosomes the allele determines which expression will show externally and most of the time only one allele among the two allele expresses externally. But sometimes both the alleles express themselves externally together and … Read more

Hi, now we are going to discuss some fossil fuels, coal and petroleum along with formation and types of coal in which we will talk about how coal is formed and different types of coal.  Basic Introduction About Coal and Petroleum:  In our daily life we need different types of sources for our energy for … Read more

Hi, now we are going to discuss the life cycle of cockroaches and we should know about their life cycle because cockroaches are a member of insects and it will help to understand about the life cycle of other insects also.  One more interesting fact about cockroaches is that cockroaches are very ancient insects so … Read more

Hi, now we are going to discuss characteristics and classification of coelenterata in which we will discuss their general characteristics features and their classification along with their examples of each category.  Basic Idea About Coelenterata:  Members of coelenterata are mostly observed in aquatic environments, especially in marine environments; they grow abundantly and they do not … Read more