Modern Periodic Law Modern Periodic Table Period Group Electronic Configuration Atomic Radius Ionic Radius Ionization Enthalpy Electro negativity Screening Effect Valency and Oxidation No Diagonal Relationship MultiChoice Questions
Lecture OneThe CellIntroductionImportant Events in the Discovery of CellsFunctions of the parts of a cellTypes of CellRevision Questions Lecture TwoMovement of Materials in and out of the CellOsmosis Introduction & Basic explanationsUses of OsmosisSummary of Activities in OsmosisOsmosis and Food PreservationDiffusionIntroduction & Basic explanationsUses of DiffusionPlasmolysisRevision Questions Lecture ThreeEcologyLevels of EcologySome Ecological termsExercises Lecture FourIntra and inter Re...
Bio 101 General Biology Lecture OneThe CellIntroductionImportant Events in the Discovery of CellsFunctions of the parts of a cellTypes of CellRevision Questions Lecture TwoMovement of Materials in and out of the CellOsmosis Introduction & Basic explanationsUses of OsmosisSummary of Activities in OsmosisOsmosis and Food PreservationDiffusionIntroduction & Basic explanationsUses of DiffusionPlasmolysisRevision Questions Lecture ThreeEcologyLevels of EcologySome Ecological termsExercises Lectur...
Trade is vital to any country for its growth and development. It is so essential that the absence will make all the economies in the world grind to an unexpected halt. There are other regions globally where the functioning of the economy and trade contribution can be more practical than in the United States. In most instances, the economies are supported by trading commodities and services. One of the essential elements of commerce is the transport system. The case analysis will be on the fr...
TABLE OF CONTENTS Forestry extension in the world .............................................................................................1 Forestry extension in Nigeria ................................................................................................2 The institutional setting of forestry extension......................................................................7 Importance of rural communities ............................................................................
Everybody communicates in one way or the other. It is important in every society to exchange meanings What then is Communication? Communication is a continuous, never-ending means of transferring or passing on messages (ideas, innovations, skills, knowledge or practices from a source to the ultimate users in order to modify the behaviour or reaction of receivers in the desired direction. Questions to Ask Before Communication Takes Place Is the communication to an expert or a general aud...
ABSTRACT Evolution is change in the heritable characteristics of biological populations over successive generations. These characteristics are the expressions of genes that are passed on from parent to offspring during reproduction. Biodiversity refers to the variety of living species on Earth, including plants, animals, bacteria, and fungi. Africa is the second largest continent and comprises approximately 20% of the total land surface of the planet. The terrestrial Afrotropical biota exhib...
Transmission Electron Microscopy (TEM) is a vital characterization tool for directly imaging nanomaterials to obtain quantitative measures of particle and/or grain size, size distribution, and morphology. TEM images the transmission of a focused beam of electrons through a sample, forming an image in an analogous way to a light microscope (Figure 1). However, because electrons are used rather than light to illuminate the sample, TEM�...
Insects are the most successful and enduring life form on earth and are known to have existed for over 400 million years. They are the most dominant multicellular life form on earth and are represented all over, from the poles to the equator, from the sea surface to the highest peaks and from the deserts to rain forests. It is estimated that insects comprise about half of the earth’s 1.5 million known species (Chapman, 2013; McGavin, 2007). Gullan and Cranston (2014) stated that it was ver...
INTRODUCTION There has been world wide explosion of infectious diseases with emerging diseases such as HIV/AIDS pandemic as well as old diseases like cholera, tuberculosis, dengue, or malaria. These infectious diseases are on a sudden increase due to many factors amongst which; climate change, transformation of ecosystems, socio-economic problems and Public health systems deterioration in many countries in the world. Generally, numerous diseases have emerged and re-emerged (Sanjeev et al., 20...
SDGs-Prenuership, is a subject that deals with how to turn the UN Global Goals into Local Sustainable Businesses. This is the right thinking and concern for the world now in order to achieve the 2030 Agenda through the SDGs. Thus, this lecture provides a practical guide on how to actualize this laudable sustainable development goals of the UN for the benefit of people and planet earth. It is well simplified so that all may understand, participate and reap the benefit of the UN Global Goals.
Extension agent is critical element in all extension activities. If the extension agent is not able to respond to a given situation and function effectively, it does not matter how imaginative the extension approach is or how impressive the supply of inputs and resources for extension work. Indeed, the effectiveness of the extension agent can often determine the success or failure of an extension programme. The extension agent has to work with people in a variety of different ways. It is oft...