What is Biology
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What is Biology
<b>Introduction – What is Biology?
</b>
Biology is a science. It is the study of living things in their environment.
The word Biology is derived from two Greek words: Bios which means life and logos which means knowledge. People who
study Biology are called Biologists.
<b>Branches of Biology,
</b>
Characteristics of living things,
Classification of living things,
Cells and their structure, the microscope and how to use and care for it,
Cell Physiology,
Nutrition in plants and animals.
Biology can be divided into various branches. Such branches are named according to which organisms are involved:
- Botany- the study of plants e.g. Maize.
- Zoology- the study of animals e.g. Leopard
- Microbiology- the study of micro-organisms e.g. bacteria
- Mycology- the study of fungi e.g. mushrooms
<b>Importance of Biology
</b>
Study of Biology helps you to develop scientific skills such as planning, observing, classifying, measuring, recording
and analyzing
It is also necessary for entry into careers such as Medicine, Teaching, Agriculture and Research. Scientific research
based on Biology has led to development of high yielding and disease-resistant plants and animals.
In solving environmental problems such as shortage of food, poor health services misuse of environmental resources
e.g. forests, wildlife, water and soil.
To know more about living organisms in relation to their environment.
<b>Nutrition: nourishment
</b>
Reproduction: Refers to giving rise to young ones of the same kind. Living things give rise to young ones of their own
kind.
Irritability: Living things have the ability to detect and respond to changes in their environment.
Gaseous Exchange: They exchange Carbon (iv) Oxide and Oxygen, across a respiratory surface.
Respiration: They breakdown food in their body cells to release energy.
Excretion: They remove waste products of chemical reactions from the body.
movement: Change in position of part or whole organism.
Growth and Development: They grow. Growth is permanent increase in size and mass of an organism.
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