Chapter 1 - Studying Biology

Question 1

Importance of studying biology

Answer 1

1. To understand the nature of life and appreciate the wonders of life
2. To learn the relationships between organisms and the environment and a respect for all organisms —> increase awareness of many social issues related to biology such as (pollution, genetically modified food, cloning and conservation of endangered species)
3. To apply bio knowledge in daily to improve our standard of living.
4. To prepare a future career in medical field and environmental protection

Question 2

Scientific method used to study biology

Answer 2

1. Making observations
2. Asking questions
3. Hypothesis
4. Designing and doing experiment
5. Analysis
6. Conclusion
7. If results supporting the hypothesis, the theory is established
8. Otherwise, revise and reject the hypothesis

Question 3

Independent variable

Answer 3

The variable to be changed

Question 4

Dependent variable

Answer 4

Variable that may change with the independent variable, it is to be measured

Question 5

Hypothesis

Answer 5

A reasonable answer to the question to explain their observation

Question 6

Theory

Answer 6

A hypothesis supported by repeated experiments with a positive prediction and conclusion

Question 7

Characteristics of organisms

Answer 7

1. N Nutrition - obtaining food by means such as photosynthesis and feeding
2. R Respiration - break down food to release energy to support body activities
3. E Excretion - removal of harmful metabolic wastes produced from chem reactions
4. I Irritability - detection of stimuli and response to them
5. M Movement - locomotion of animals for survival
6. G Growth - increasing size and complexity
7. R Reproduction - production of new individuals for continuation of species

N R E I M G R

Question 8

Branches of biology

Answer 8

1. Molecular biology
2. Cytology
3. Anatomy
4. Botany
5. Zoology
6. Taxonomy
7. Ecology
8. Genetics