Chapter1: Introducing Biology

Question 0

Wt are the scientific method?

Answer 0

1. Making observation
2. Making hypothesis
3. Doing experiments
4. Drawing conclusion

Question 1

What are the 7 characteristics of Life?

Answer 1

Nutrition, respiration, excretion, reproduction, growth, irritability/ sensibility, movement.

Question 2

Wt are the natures of science?

Answer 2

1. Constantly advancing:
   - old beliefs–> disproved
   - new beliefs–> erect
2. Our recent advances base on the earlier studies and investigation
3. Science is dynamic but NOT static
4. Scientific knowledge is tentative and subject to change
5. Interpretation of observations is guided by our prior understanding of other theories and concepts

Question 3

How to perform a Scientific Experiment?

Answer 3

1. Scenario
2. Aim
3. Hypothesis
4. Assumption
5. Controlled experiment
6. Design of experiment
7. Variables:
   
   • independent variables( controlled by us)
   • dependent variables( measured by us)
   • controlled variables( keep the same)
8. Procedures
9. Result
10. Discussion
    
    • to indicate the trend of data
    • to explain the data trend with ur knowledge
    • to state the possible errors and suggest correction
    • to draw conclusion
11. Conclusion
    
    • the presence of XXXXX is not important in the XXXX of XXXXX

Question 4

Y do we need a controlled experiment?

Answer 4

To prove hypothesis/ For comparison purpose