What is Shiga toxin-producing Escherichia coli (STEC)? Virulence factors Virulence factors are key components that contribute to the pathogenicity of Shiga toxin-producing Escherichia coli (STEC). Here are some important virulence factors associated with STEC: These virulence factors play crucial roles in the pathogenesis of STEC infections, contributing to the colonization and damage of the intestinal … Read more
What is Enteroinvasive E. coli (EIEC)? Enteroinvasive Escherichia coli (EIEC) is a pathogenic bacteria that shares similarities with Shigella, a bacteria known to cause shigellosis. EIEC infections lead to a syndrome that closely resembles shigellosis, characterized by severe diarrhea and high fever. Unlike other types of E. coli, EIEC is highly invasive and enters intestinal … Read more
What is Bacterial Growth Curve? A bacterial growth curve is the graphical representation that shows the increase and decrease in number of bacterial cells in a population with respect to time. It is studied when bacteria are grown in a closed system or batch culture where no fresh nutrients are added and waste products are … Read more
Learn smooth muscle definition, characteristics, structure, types, contraction mechanism, control, examples and functions in simple biology note format.
Definition of Terrestrial Ecosystem Features of Terrestrial Ecosystem The terrestrial ecosystem has the following characteristics: Types Of Terrestrial Ecosystems Different types of terrestrial ecosystems are widely dispersed throughout the geological zones. They consist of: 1. Desert Ecosystem 2. Forest Ecosystem Types of forest Ecosystem According to climate and tree type, they are divided into the … Read more
What is the Aquatic Ecosystem? Features of Aquatic Ecosystem Detailed characteristics of the aquatic ecosystem are depicted in the graphic below — Types of Aquatic Ecosystem There are two types of Aquatic Ecosystems, including; 1. Freshwater Aquatic Ecosystem a. Lotic Ecosystems b. Lentic Ecosystems c. Wetlands 2. Marine Aquatic Ecosystem a. Ocean Ecosystems b. Coastal … Read more
What is a Food Chain? A food chain refers to the sequence of events in an ecosystem in which one living organism consumes another, which is then consumed by a larger organism. A food chain is the movement of nutrients and energy from one creature to another at different trophic levels. Features of Food Chain … Read more
Energy Flow Energy Flow in Ecosystem Law of Thermodynamics in the Ecosystem Food Chain In the ecosystem, there are basically three different kinds of food chains. In nature, we mostly look at the food web because many living things eat both plants and animals. So, they live in more than one trophic level. Producers are … Read more
What are Ecological Pyramids? Definition of Ecological Pyramids Ecological pyramids are graphical representations that depict the distribution of energy, biomass, or numbers of organisms across different trophic levels in an ecosystem. Features of the Ecological Pyramid The Ecological Pyramid is a fundamental concept in ecology, offering a structured visual representation of the distribution and flow … Read more
What is Food Web? Definition of Food Web Characteristics of the food web Trophic Levels in a Food Web Energy Flow Types of Food Webs There are different kinds of food webs that differ in how they are put together and what they show or stress about the organisms in the ecosystem they show. Scientists … Read more
