Gene Flow

Gene flow is transfer of genes from one population to another. Factors affecting gene flow: 1. Mobility: gene flow is lower in species having low mobility or dispersal. 2. Distance: When there is long distances between populations then it results in low gene flow. 3. Population size: Small population size results in low gene flow. […]

Modes Of Nutrition

Nutrition is defined as the process of obtaining nutrients or food and utilising them. It is of two types: autotrophic and heterotrophic nutrition. Autotrophic nutrition is defined as the process in which organisms prepares their food on their own. Heterotrophic nutrition is defined as the process in which organisms obtain their food from other organisms. […]