Biology

Kingdom Animalia The word ‘animal’ is derived from the Latin word animalis which means ‘having breath’. The Kingdom Animalia is characterized by eukaryotic and heterotrophic organisms. They are multicellular and lack cell wall. They depend directly or indirectly of plants…

The concept of the Genetics Explain the concept of the genetics Genetics is the study of heredity and variations in organism. Through this statement there are two common words that are heredity and variation. Heredity is the passing on of…

The concept of Growth Explain the concept of growth Growth is an increase in size/mass or growth. It is the progressive development of living thing, especially the process by which the body reaches its point of complete physical development. The…

Concept of Reproduction Reproduction is the ability of living organisms to form new individuals of the same species from those already in existence. Here, the new organisms replace those that have died and so life continues. It can also be…

The Concept of Regulation Explain the concept of regulation Living organisms are subjected to wide variations in temperature, light, acidity, salinity, wind speeds, availability of water minerals and nutrients. These environmental factors create a shifting external setting to which organisms…

The Concept of Excretion Explain the concept of excretion Chemical reactions occur in the cells of living organisms all the time to carry out the life processes. The sum of these reactions is called metabolism. Metabolism produces useful products as…

In this topic you will learn about concept of coordination, nervous coordination in humans, sense organs, drugs and drug abuse in relation to nervous coordination, and coordination in plants.

The Concept of Movement and Locomotion Explain the concept of movement and locomotion Movement refers to change of position and posture. Therefore the change of position of body parts such as limbs and other body parts. Locomotion is the movement…

Kingdom Plantae, Division Coniferophyte (Conifers ) General and Distinctive Features of the Division Coniferophyte Explain general and distinctive features of the division coniferophyta Division Coniferophyta or the conifers belong to Kingdom Plantae. These plants are gymnosperms meaning non-flowering. They are…

Biology is one of the most important science subjects in the Tanzania secondary school curriculum. For Form Three students, biology introduces advanced concepts that help learners understand living organisms, human health, reproduction, genetics, ecology, and scientific processes. These topics are…