1.1 The Study of Biology

Biology is the study of life or living organisms.
bios – life
logy – (original: logos) which means study.

Importance of Biology

  1. better understanding on the functions of human body.
  2. better understanding on the causes of diseases and its cure.
  3. better understanding on ecology and henceimprove the management of problems related to the environment.
  4. saving animal and plant species which arefacing extinction.


Fields of Biology Research

  1. Anatomy
  2. Physiology
  3. Cell biology
  4. Molecular biology
  5. Genetics
  6. Microbiology
  7. Bacteriology Entomology
  8. Developmetal biology
  9. Ecology
  10. Zoology
  11. Botany
  12. Taxonomy
  13. Histology

Career Related to Biology

Medicine Doctor, nurse, dentist, pharmacist, veterinarian, physiotherapist
Biotechnology Biotechnologist, nutritionist, food technologist
Agriculture Estate manager, botanist, agricultural officer
Industry Research officer, scientist

Characteristic of Living Organism

Metapolism: Obtain energy for life and activities
Respiration: Breakdown food to obtain energy for growth, movement….
Nutrition: -Sources of energy and growth
-Repair dameged tissue
Locomotion: Moving from place to place (only for animal)
Reproduction: Reproduce offspring
Growth: Increasing in size
Excretion: Expelled waste from body

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