Table of contents | |
Introduction | |
Branches of Biology | |
Branches of Zoology | |
Characteristics of Living Beings |
The development of various tools and techniques has led to many branches of biology:
This branch studies the fundamental principles of living organisms, including their structure and functions. It encompasses botany, zoology, and microbiology.
Botany: Theophrastus, known as the father of botany, documented about 500 plants in his book "Historia Plantarum."
Branches of Botany
Zoology: Aristotle, also called the father of zoology and embryology, described the structure, nature, classification, and reproduction of about 500 animals in "Historia Animalium."
Microbiology: This branch focuses on microorganisms like bacteria and viruses.
This branch applies biological principles for the benefit of humankind, including agriculture, medical science, veterinary science, and pharmacy.
Various biological techniques have been misused against humanity:
Living organisms possess unique characteristics that distinguish them from non-living entities.
The cell is the fundamental building block of living organisms, serving as the structural and functional unit of life. This complex arrangement is absent in non-living things.
Metabolism is a dynamic feature of all living beings, encompassing all chemical reactions within an organism. It is divided into two phases:
All living organisms require nutrition for growth and development. Nutrition involves the intake of food particles to provide energy and materials necessary for life-sustaining activities.
The life of every organism starts from a single cell, which divides to form many cells, tissues, organs, organ systems, and ultimately a complete body. This process is called growth and is a distinctive feature of living beings. Growth in living beings is fundamentally different from growth in non-living entities.
Reproduction is a key feature of living organisms, ensuring the continuity of life. For example, plants produce seeds that germinate into new plants, and mammals give birth to offspring.
Adaptation refers to an organism's ability to adjust to external environmental changes. For example, fish are adapted to live in water, while frogs are adapted to live both on land and in water.
464 videos|571 docs|394 tests
|
1. What are the main branches of Biology? |
2. What are the branches of Zoology? |
3. What are the characteristics of living beings according to Biology? |
4. What is the significance of studying Biology for SSC CGL exam? |
5. How can knowledge of Biology help in cracking the SSC CGL exam? |
|
Explore Courses for SSC CGL exam
|