The document discusses the levels of biological organization from atoms to the biosphere. It also outlines the steps of the scientific method, including identifying a problem, making observations, collecting data, forming a hypothesis, using inductive or deductive reasoning, experimentation, reaching a conclusion, developing a theory, and establishing a law. The biosphere consists of all ecosystems on Earth and ecosystems contain interacting communities of organisms and their physical environment.

1. Dr. Aarab Khan Lund
Level of Organization and Biological method

2. Species

3. Population
Homo sapiens

4. Community

5. Ecosystem

6. Biosphere
All the ecosystems around the world make
up the biosphere.

7. The biosphere
Ecosystems
Tissues
Organs and
organ systems
Communities
Populations
Organisms
Organelles
Cells
Atoms
Molecules
Figure 1.4

8. Phyletic lineage………..?

9. Biological Method
 Problem….....?
 Observation(Sense/Instrument)……..?
 Qualitative
 Quantitative
 Data Collection…..?
 Hypothesis……..?
 Inductive Reasoning……?
 Specific to general
 This book is written.
 Biology,Physics, Chemistry are all books.
 All books are written.
 Deductive Reasoning……?
 General to specific
 E.g. All books are written
 This is a book.It is written
 Experimentation……..?
 Conclusion……..?
 Theory………?
 Law……?