Introduction to Biology
Biology is the branch of science that studies life and living organisms. It explains the structure, functions, growth, reproduction, evolution, and interactions of plants, animals, and microorganisms. From the smallest cell to the complete human body and the diversity of life around us, biology helps us understand how living systems work. The study of biology […]
Health And Diseases: Types, Causes, Symptoms, Prevention And Deficiency Disorders
Health does not only mean the absence of illness. It is a complete state of physical, mental and social well-being. A healthy person is able to function properly, respond to changes in the surroundings and maintain balance inside the body. Health is also a dynamic state. It keeps changing with food habits, hygiene, lifestyle, environment […]
Diversity In Living Organisms: Classification, Kingdoms, Plants And Animals Explained
Living organisms show a huge variety in their structure, size, body organisation, nutrition and reproduction. Some organisms are microscopic and unicellular, while others are large, complex and multicellular. To study this wide variety properly, scientists group organisms into categories. This process is called classification. What Is Classification? Classification is the process by which living organisms […]
Reproduction In Organisms: Asexual & Sexual Reproduction, Pollination And Human Reproductive System
Reproduction is the process by which living organisms produce new organisms of the same species. It is important because it maintains the continuity of life from one generation to the next. There are two main modes of reproduction: Asexual Reproduction Asexual reproduction is a rapid mode of reproduction in which only one parent is involved. […]
Human Physiology: Digestive, Excretory, Nervous, Endocrine And Locomotory Systems Explained
Human physiology is the study of how different organs and organ systems of the human body work. The human body performs many life processes such as digestion, respiration, circulation, excretion, coordination, movement and growth. These processes are carried out by different systems that work together in a coordinated manner. Part 1: Digestive System What Is […]
Plant Physiology And Morphology: Roots, Stems, Leaves, Flowers, Photosynthesis And Plant Hormones
Plant morphology is the branch of biology that deals with the external form and structure of plants. It studies plant organs such as: Plant physiology studies the internal life processes of plants, such as water movement, mineral nutrition, photosynthesis, respiration and hormonal control. Part 1: Plant Morphology Plant Diversity Plants show diversity in form, size, […]
Tissue: Types, Structure, Functions, Plant And Animal Tissues Explained
Living organisms are made up of cells, but cells rarely work alone. Groups of similar cells join together to perform specific functions. Such organized groups of cells are known as tissues. Tissues help organisms carry out specialized activities efficiently. In multicellular organisms, different tissues perform different functions, allowing the body to function as a coordinated […]
Cell & Cell Cycle: Complete Biology Notes For Students
The cell is the basic structural and functional unit of living beings. Every living organism, whether simple or complex, is made up of one or more cells. The study of cells is called cytology. Most organisms, including humans, begin life as a single cell called a zygote. This single cell divides again and again to […]