A microscope is an instrument used in magnifying and viewing organisms smaller than 0.1mm that is too tiny to be seen by the human eyes. A compound light microscope consists of the following parts:
• Revolving nose piece: it is used for selecting lens to be used and to be in line with the eye piece.
• Objective lenses (low, medium and high power): for magnification of object
• Eye piece lens or ocular: for viewing magnified object.
• Body tube: provides attachment to eyepiece, revolving nose piece, low-power, medium-power and high-power objective lens.
PROCESS OR METHOD OF SCIENCE
This is a systematic approach used to investigate enquiries arising from any observation made in nature. Therefore, the scientific method is the tool used to unravel the mysteries of life. The scientific methods include the following steps:
Measurement and Identification
Control or Conclusion
Theory or Law
BIOLOGY AS AN INQUIRY IN SCIENCE
Science is the study of nature (living and non-living things). Biology is a science that studies living things in nature. Biology was formed from the Greek words “Bio” (meaning life) and “logos” (meaning, study of).
The organisms studied in biology are generally classified into plants and animals. Therefore, biology is a science subject that can be subdivided into two main branches or subjects namely: