1. Chapter 1 Notes Biology: The Study of Life

2. Section 1.1 -What is Biology
The Science of Biology
Biology is the study of ____LIFE____
Biology is formed by understanding the natural environment. (theories, concepts, principles)
All life interacts and depends on:
BIOTIC factors – living things
ABIOTIC factors – nonliving things

3. Name some topics that you think you will learn as you study Biology.

4. B. Biologists Study the Diversity of Life
Nothing exists in ___isolation___ – the study of one living thing always involves the study of the others in which it interacts.
The study of biology will teach you how humans __function___ and how we fit in with the rest of the natural world.

5. Why is it important to know human/earth interactions?

6. C. Characteristics of Living Things
Anything that possesses all of the following life functions is alive:
1. Organization- have an orderly structure
- made up of:
cells – tissues – organs – organ systems – organism

7. 2. Reproduction – production of offspring
Species - a group of organisms that can interbreed and produce fertile offspring

8. 3. Grow and Develop
Growth – the increase in the amount of living material and the formation of new structures
Development - refers to the changes that occur in each organisms life

9. 4. Adjust to changes in the environment
Stimulus – anything in an organism’s external or internal environment that causes the organism to react.
Response – a reaction to a stimulus
Homeostasis – regulation of an organism’s internal environment to maintain conditions suitable for survival.

10. The tiger is living because:1. 2. 3. 4.

11. What is an example of a stimulus and a response?
What do you think would happen to an organism if they did not have the ability to adjust to internal changes?

12. D. Scientific Measurement
Precision – how close measured values are to each other.
Accuracy – how close a measured value is to the actual (true) value.