Bacteria cells are the smallest living cells that are known; even though viruses are smaller than bacteria, viruses are not living cells. In microbiology there are different types of bacteria with various sizes, shapes, and structures. The bacteria shapes, structure, and labeled diagrams are discussed below. Sizes The sizes of bacteria cells …
What are Decomposers? Decomposers are organisms that feed on dead organic matters (for example, scavengers like vultures and crows), and further breaking down the dead matter by other decomposing agents like bacteria and various microorganisms. Decomposers are saprophytes; they feed on dead and decaying organisms and their excreta (waste such as urine …
What is Biodiversity? Biodiversity in ecology is the geographical distribution of all species of plants, animals, insects and the microorganisms inhabiting the earth either in the aquatic or the terrestrial habitats. Biodiversity is a term that combines two words, Bio (life) and diversity (variety). However, biodiversity is defined as the number and variety of organisms found …
As the climate and ecology of Nigeria vary, so do the ecological zones of Nigeria. Nigeria has two major ecological zones and they are the Savannah and Forest ecological zones. These ecological zones are subdivided into three each known as Vegetation belt. The Forest zone is subdivided into: Mangrove or Salt water swamp, the Fresh water swamp and the High …
Cytoplasm Definition The Cytoplasm of both plant cells and animal cells is the jellylike material formed by 80% of the water that contains a clear liquid portion called the cytosol and various particles of different shapes and sizes; these particles are proteins, carbohydrates, lipids, or electrolytes in nature. It also contains many …
Endoplasmic Reticulum (ER) is found in the cytoplasm of most cells and forms a system of membranes. The membranes form the boundaries of channels that may be arranged in the form of flattened sacs (or cisternae) or of tubules. Because of the presence of the Endoplasmic Reticulum, the cytoplasm is divided into …
The Rough endoplasmic reticulum got its name from the appearance of Ribosomes on the membrane of the rough ER when observed with a light microscope. In most places the membranes forming the Endoplasmic reticulum are studded with minute particles of RNA called ribosomes. The presence of these ribosomes gives the membrane a rough …
Definition of Vegetation Resources Vegetation resources in ecology are derived from the forest and Savannah, and are of immerse important to man, animals and plants. It is a key component of an ecosystem and as such, it is involved in the regulation of various biogeochemical cycles, e.g., water, carbon, nitrogen. Vegetation provides habitat …